131130757 has 4 divisors (see below), whose sum is σ = 132790720. Its totient is φ = 129470796.

The previous prime is 131130749. The next prime is 131130767. The reversal of 131130757 is 757031131.

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 131130757 - 2³ = 131130749 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 (131130767) 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, 829863 + ... + 830020.

It is an arithmetic number, because the mean of its divisors is an integer number (33197680).

Almost surely, 2^131130757 is an apocalyptic number.

It is an amenable number.

131130757 is a deficient number, since it is larger than the sum of its proper divisors (1659963).

131130757 is an equidigital number, since it uses as much as digits as its factorization.

131130757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1659962.

The product of its (nonzero) digits is 2205, while the sum is 28.

The square root of 131130757 is about 11451.2338636498. The cubic root of 131130757 is about 508.0442293625.

Adding to 131130757 its reverse (757031131), we get a palindrome (888161888).

The spelling of 131130757 in words is "one hundred thirty-one million, one hundred thirty thousand, seven hundred fifty-seven".