131479757 has 4 divisors (see below), whose sum is σ = 131535936. Its totient is φ = 131423580.

The previous prime is 131479739. The next prime is 131479769. The reversal of 131479757 is 757974131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131479757 - 2⁶ = 131479693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131479787) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24419 + ... + 29312.

It is an arithmetic number, because the mean of its divisors is an integer number (32883984).

Almost surely, 2^131479757 is an apocalyptic number.

It is an amenable number.

131479757 is a deficient number, since it is larger than the sum of its proper divisors (56179).

131479757 is an equidigital number, since it uses as much as digits as its factorization.

131479757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56178.

The product of its digits is 185220, while the sum is 44.

The square root of 131479757 is about 11466.4622704651. The cubic root of 131479757 is about 508.4945441807.

The spelling of 131479757 in words is "one hundred thirty-one million, four hundred seventy-nine thousand, seven hundred fifty-seven".