131955925 has 6 divisors (see below), whose sum is σ = 163625378. Its totient is φ = 105564720.

The previous prime is 131955911. The next prime is 131955953. The reversal of 131955925 is 529559131.

It can be written as a sum of positive squares in 3 ways, for example, as 35307364 + 96648561 = 5942^2 + 9831^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131955925 is a prime.

It is a super-2 number, since 2×131955925² = 34824732285211250, which contains 22 as substring.

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 5 ways as a sum of consecutive naturals, for example, 2639094 + ... + 2639143.

Almost surely, 2^131955925 is an apocalyptic number.

It is an amenable number.

131955925 is a deficient number, since it is larger than the sum of its proper divisors (31669453).

131955925 is an equidigital number, since it uses as much as digits as its factorization.

131955925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5278247 (or 5278242 counting only the distinct ones).

The product of its digits is 60750, while the sum is 40.

The square root of 131955925 is about 11487.2070147621. The cubic root of 131955925 is about 509.1076604095.

The spelling of 131955925 in words is "one hundred thirty-one million, nine hundred fifty-five thousand, nine hundred twenty-five".