131867634 has 16 divisors (see below), whose sum is σ = 264499488. Its totient is φ = 43828512.

The previous prime is 131867621. The next prime is 131867639. The reversal of 131867634 is 436768131.

It is a junction number, because it is equal to n+sod(n) for n = 131867592 and 131867601.

It is not an unprimeable number, because it can be changed into a prime (131867639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29587 + ... + 33750.

It is an arithmetic number, because the mean of its divisors is an integer number (16531218).

Almost surely, 2^131867634 is an apocalyptic number.

131867634 is an abundant number, since it is smaller than the sum of its proper divisors (132631854).

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

131867634 is a wasteful number, since it uses less digits than its factorization.

131867634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63689.

The product of its digits is 72576, while the sum is 39.

The square root of 131867634 is about 11483.3633574837. The cubic root of 131867634 is about 508.9940880093.

The spelling of 131867634 in words is "one hundred thirty-one million, eight hundred sixty-seven thousand, six hundred thirty-four".