131797725 has 24 divisors (see below), whose sum is σ = 219262752. Its totient is φ = 69854400.

The previous prime is 131797723. The next prime is 131797747. The reversal of 131797725 is 527797131.

It is not a de Polignac number, because 131797725 - 2¹ = 131797723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131797723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6835 + ... + 17615.

It is an arithmetic number, because the mean of its divisors is an integer number (9135948).

Almost surely, 2^131797725 is an apocalyptic number.

131797725 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131797725 is a deficient number, since it is larger than the sum of its proper divisors (87465027).

131797725 is a wasteful number, since it uses less digits than its factorization.

131797725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10957 (or 10952 counting only the distinct ones).

The product of its digits is 92610, while the sum is 42.

The square root of 131797725 is about 11480.3190286681. The cubic root of 131797725 is about 508.9041251767.

The spelling of 131797725 in words is "one hundred thirty-one million, seven hundred ninety-seven thousand, seven hundred twenty-five".