131694906 has 16 divisors (see below), whose sum is σ = 301017024. Its totient is φ = 37627104.

The previous prime is 131694881. The next prime is 131694917. The reversal of 131694906 is 609496131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1567755 + ... + 1567838.

It is an arithmetic number, because the mean of its divisors is an integer number (18813564).

Almost surely, 2^131694906 is an apocalyptic number.

131694906 is an abundant number, since it is smaller than the sum of its proper divisors (169322118).

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

131694906 is a wasteful number, since it uses less digits than its factorization.

131694906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3135605.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 131694906 is about 11475.8400999665. The cubic root of 131694906 is about 508.7717540859.

The spelling of 131694906 in words is "one hundred thirty-one million, six hundred ninety-four thousand, nine hundred six".