137389808 has 10 divisors (see below), whose sum is σ = 266192784. Its totient is φ = 68694896.

The previous prime is 137389793. The next prime is 137389831. The reversal of 137389808 is 808983731.

It is a congruent 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 as a sum of consecutive naturals, namely, 4293416 + ... + 4293447.

Almost surely, 2^137389808 is an apocalyptic number.

It is an amenable number.

137389808 is a deficient number, since it is larger than the sum of its proper divisors (128802976).

137389808 is an equidigital number, since it uses as much as digits as its factorization.

137389808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8586871 (or 8586865 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 137389808 is about 11721.3398551531. The cubic root of 137389808 is about 516.0021432918.

The spelling of 137389808 in words is "one hundred thirty-seven million, three hundred eighty-nine thousand, eight hundred eight".