131394522 has 32 divisors (see below), whose sum is σ = 301104000. Its totient is φ = 37444608.

The previous prime is 131394509. The next prime is 131394539. The reversal of 131394522 is 225493131.

It is a self number, because there is not a number n which added to its sum of digits gives 131394522.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13354 + ... + 21002.

It is an arithmetic number, because the mean of its divisors is an integer number (9409500).

Almost surely, 2^131394522 is an apocalyptic number.

131394522 is an abundant number, since it is smaller than the sum of its proper divisors (169709478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131394522 is a wasteful number, since it uses less digits than its factorization.

131394522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8070.

The product of its digits is 6480, while the sum is 30.

The square root of 131394522 is about 11462.7449592146. The cubic root of 131394522 is about 508.3846390451.

The spelling of 131394522 in words is "one hundred thirty-one million, three hundred ninety-four thousand, five hundred twenty-two".