137664684 has 30 divisors (see below), whose sum is σ = 359883524. Its totient is φ = 45888120.

The previous prime is 137664661. The next prime is 137664697. The reversal of 137664684 is 486466731.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 212122 + ... + 212769.

Almost surely, 2^137664684 is an apocalyptic number.

It is an amenable number.

137664684 is an abundant number, since it is smaller than the sum of its proper divisors (222218840).

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

137664684 is a wasteful number, since it uses less digits than its factorization.

137664684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424907 (or 424896 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 137664684 is about 11733.0594475610. The cubic root of 137664684 is about 516.3460361450.

The spelling of 137664684 in words is "one hundred thirty-seven million, six hundred sixty-four thousand, six hundred eighty-four".