137640264 has 32 divisors (see below), whose sum is σ = 355968000. Its totient is φ = 44297792.

The previous prime is 137640253. The next prime is 137640271. The reversal of 137640264 is 462046731.

It is a happy number.

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, 98184 + ... + 99575.

It is an arithmetic number, because the mean of its divisors is an integer number (11124000).

Almost surely, 2^137640264 is an apocalyptic number.

It is an amenable number.

137640264 is an abundant number, since it is smaller than the sum of its proper divisors (218327736).

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

137640264 is a wasteful number, since it uses less digits than its factorization.

137640264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197797 (or 197793 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 33.

The square root of 137640264 is about 11732.0187521159. The cubic root of 137640264 is about 516.3155032214.

Adding to 137640264 its reverse (462046731), we get a palindrome (599686995).

The spelling of 137640264 in words is "one hundred thirty-seven million, six hundred forty thousand, two hundred sixty-four".