131906136 has 16 divisors (see below), whose sum is σ = 329765400. Its totient is φ = 43968704.

The previous prime is 131906087. The next prime is 131906141. The reversal of 131906136 is 631609131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2748021 + ... + 2748068.

Almost surely, 2^131906136 is an apocalyptic number.

It is an amenable number.

131906136 is an abundant number, since it is smaller than the sum of its proper divisors (197859264).

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

131906136 is a wasteful number, since it uses less digits than its factorization.

131906136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5496098 (or 5496094 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 131906136 is about 11485.0396603582. The cubic root of 131906136 is about 509.0436209710.

The spelling of 131906136 in words is "one hundred thirty-one million, nine hundred six thousand, one hundred thirty-six".