131497582 has 4 divisors (see below), whose sum is σ = 197246376. Its totient is φ = 65748790.

The previous prime is 131497577. The next prime is 131497649. The reversal of 131497582 is 285794131.

131497582 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×131497582² = 34583228143693448, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 32874394 + ... + 32874397.

It is an arithmetic number, because the mean of its divisors is an integer number (49311594).

Almost surely, 2^131497582 is an apocalyptic number.

131497582 is a deficient number, since it is larger than the sum of its proper divisors (65748794).

131497582 is an equidigital number, since it uses as much as digits as its factorization.

131497582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65748793.

The product of its digits is 60480, while the sum is 40.

The square root of 131497582 is about 11467.2395108849. The cubic root of 131497582 is about 508.5175223838.

The spelling of 131497582 in words is "one hundred thirty-one million, four hundred ninety-seven thousand, five hundred eighty-two".