137264644 has 24 divisors (see below), whose sum is σ = 273446208. Its totient is φ = 59679840.

The previous prime is 137264639. The next prime is 137264651. The reversal of 137264644 is 446462731.

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, 66807 + ... + 68830.

It is an arithmetic number, because the mean of its divisors is an integer number (11393592).

Almost surely, 2^137264644 is an apocalyptic number.

It is an amenable number.

137264644 is a deficient number, since it is larger than the sum of its proper divisors (136181564).

137264644 is a wasteful number, since it uses less digits than its factorization.

137264644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135675 (or 135673 counting only the distinct ones).

The product of its digits is 96768, while the sum is 37.

The square root of 137264644 is about 11715.9994878798. Note that the first 3 decimals coincide. The cubic root of 137264644 is about 515.8454006733.

The spelling of 137264644 in words is "one hundred thirty-seven million, two hundred sixty-four thousand, six hundred forty-four".