131330925 has 72 divisors (see below), whose sum is σ = 262304640. Its totient is φ = 62265600.

The previous prime is 131330917. The next prime is 131330929. The reversal of 131330925 is 529033131.

It is a happy number.

It is not a de Polignac number, because 131330925 - 2³ = 131330917 is a prime.

It is a super-2 number, since 2×131330925² = 34495623722711250, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330929) 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 71 ways as a sum of consecutive naturals, for example, 115761 + ... + 116889.

It is an arithmetic number, because the mean of its divisors is an integer number (3643120).

Almost surely, 2^131330925 is an apocalyptic number.

131330925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131330925 is a deficient number, since it is larger than the sum of its proper divisors (130973715).

131330925 is a wasteful number, since it uses less digits than its factorization.

With its successor (131330926) it forms an eRAP, since the sums of their prime factors are consecutive (1203 and 1204).

131330925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 2430, while the sum is 27.

The square root of 131330925 is about 11459.9705497004. The cubic root of 131330925 is about 508.3026037741.

The spelling of 131330925 in words is "one hundred thirty-one million, three hundred thirty thousand, nine hundred twenty-five".