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132001005221 = 179298358197
BaseRepresentation
bin111101011101111011…
…1110111111010100101
3110121201101011211202022
41322323313313322211
54130314224131341
6140350155352525
712352052013551
oct1727367677245
9417641154668
10132001005221
1150a88142a58
12216baa52745
13c5a86115a7
146563146861
153678873e4b
hex1ebbdf7ea5

132001005221 has 8 divisors (see below), whose sum is σ = 139916234520. Its totient is φ = 124102494208.

The previous prime is 132001005211. The next prime is 132001005239. The reversal of 132001005221 is 122500100231.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15200424100 + 116800581121 = 123290^2 + 341761^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 132001005221 - 214 = 132000988837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 132001005221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (132001005211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4163306 + ... + 4194891.

It is an arithmetic number, because the mean of its divisors is an integer number (17489529315).

Almost surely, 2132001005221 is an apocalyptic number.

It is an amenable number.

132001005221 is a deficient number, since it is larger than the sum of its proper divisors (7915229299).

132001005221 is an equidigital number, since it uses as much as digits as its factorization.

132001005221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8359143.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 132001005221 its reverse (122500100231), we get a palindrome (254501105452).

The spelling of 132001005221 in words is "one hundred thirty-two billion, one million, five thousand, two hundred twenty-one".

Divisors: 1 17 929 15793 8358197 142089349 7764765013 132001005221