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131325501 = 3411067687
BaseRepresentation
bin1111101001111…
…01111000111101
3100011010000201110
413310331320331
5232104404001
621010432233
73153151116
oct764757075
9304100643
10131325501
116814787a
1237b92679
1321290bc8
141362720d
15b7e13d6
hex7d3de3d

131325501 has 8 divisors (see below), whose sum is σ = 179371584. Its totient is φ = 85414880.

The previous prime is 131325457. The next prime is 131325521. The reversal of 131325501 is 105523131.

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 131325501 - 29 = 131324989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131325521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 533721 + ... + 533966.

It is an arithmetic number, because the mean of its divisors is an integer number (22421448).

Almost surely, 2131325501 is an apocalyptic number.

It is an amenable number.

131325501 is a deficient number, since it is larger than the sum of its proper divisors (48046083).

131325501 is a wasteful number, since it uses less digits than its factorization.

131325501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1067731.

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 131325501 is about 11459.7338974341. The cubic root of 131325501 is about 508.2956060029.

Adding to 131325501 its reverse (105523131), we get a palindrome (236848632).

The spelling of 131325501 in words is "one hundred thirty-one million, three hundred twenty-five thousand, five hundred one".

Divisors: 1 3 41 123 1067687 3203061 43775167 131325501