131975125 has 8 divisors (see below), whose sum is σ = 164705112. Its totient is φ = 105580000.

The previous prime is 131975119. The next prime is 131975149. The reversal of 131975125 is 521579131.

It can be written as a sum of positive squares in 4 ways, for example, as 1238769 + 130736356 = 1113^2 + 11434^2 .

It is not a de Polignac number, because 131975125 - 2⁵ = 131975093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 527776 + ... + 528025.

It is an arithmetic number, because the mean of its divisors is an integer number (20588139).

Almost surely, 2^131975125 is an apocalyptic number.

It is an amenable number.

131975125 is a deficient number, since it is larger than the sum of its proper divisors (32729987).

131975125 is an equidigital number, since it uses as much as digits as its factorization.

131975125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1055816 (or 1055806 counting only the distinct ones).

The product of its digits is 9450, while the sum is 34.

The square root of 131975125 is about 11488.0426966477. The cubic root of 131975125 is about 509.1323514645.

The spelling of 131975125 in words is "one hundred thirty-one million, nine hundred seventy-five thousand, one hundred twenty-five".