137631534 has 32 divisors (see below), whose sum is σ = 281128320. Its totient is φ = 44908512.

The previous prime is 137631503. The next prime is 137631569. The reversal of 137631534 is 435136731.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 137631495 and 137631504.

It is a congruent number.

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, 68557 + ... + 70535.

It is an arithmetic number, because the mean of its divisors is an integer number (8785260).

Almost surely, 2^137631534 is an apocalyptic number.

137631534 is an abundant number, since it is smaller than the sum of its proper divisors (143496786).

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

137631534 is a wasteful number, since it uses less digits than its factorization.

137631534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2224.

The product of its digits is 22680, while the sum is 33.

The square root of 137631534 is about 11731.6466874859. The cubic root of 137631534 is about 516.3045870124.

The spelling of 137631534 in words is "one hundred thirty-seven million, six hundred thirty-one thousand, five hundred thirty-four".