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131132201 = 314230071
BaseRepresentation
bin1111101000011…
…10101100101001
3100010202012120012
413310032230221
5232032212301
621002341305
73151414424
oct764165451
9303665505
10131132201
1168025622
1237aba835
1321223c25
14135b69bb
15b7a3ebb
hex7d0eb29

131132201 has 4 divisors (see below), whose sum is σ = 135362304. Its totient is φ = 126902100.

The previous prime is 131132159. The next prime is 131132207. The reversal of 131132201 is 102231131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131132201 - 26 = 131132137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (131132207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2115005 + ... + 2115066.

It is an arithmetic number, because the mean of its divisors is an integer number (33840576).

Almost surely, 2131132201 is an apocalyptic number.

It is an amenable number.

131132201 is a deficient number, since it is larger than the sum of its proper divisors (4230103).

131132201 is an equidigital number, since it uses as much as digits as its factorization.

131132201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4230102.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 131132201 is about 11451.2969134505. The cubic root of 131132201 is about 508.0460942013.

Adding to 131132201 its reverse (102231131), we get a palindrome (233363332).

The spelling of 131132201 in words is "one hundred thirty-one million, one hundred thirty-two thousand, two hundred one".

Divisors: 1 31 4230071 131132201