131617012 has 6 divisors (see below), whose sum is σ = 230329778. Its totient is φ = 65808504.

The previous prime is 131616977. The next prime is 131617021. The reversal of 131617012 is 210716131.

It can be written as a sum of positive squares in only one way, i.e., 123743376 + 7873636 = 11124^2 + 2806^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16452123 + ... + 16452130.

Almost surely, 2^131617012 is an apocalyptic number.

It is an amenable number.

131617012 is a deficient number, since it is larger than the sum of its proper divisors (98712766).

131617012 is a wasteful number, since it uses less digits than its factorization.

131617012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32904257 (or 32904255 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 131617012 is about 11472.4457723713. The cubic root of 131617012 is about 508.6714260267.

The spelling of 131617012 in words is "one hundred thirty-one million, six hundred seventeen thousand, twelve".