137897108 has 12 divisors (see below), whose sum is σ = 243220992. Its totient is φ = 68405400.

The previous prime is 137897069. The next prime is 137897129. The reversal of 137897108 is 801798731.

137897108 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×137897108² = 38031224789527328, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135218 + ... + 136233.

It is an arithmetic number, because the mean of its divisors is an integer number (20268416).

Almost surely, 2^137897108 is an apocalyptic number.

It is an amenable number.

137897108 is a deficient number, since it is larger than the sum of its proper divisors (105323884).

137897108 is a wasteful number, since it uses less digits than its factorization.

137897108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271582 (or 271580 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 44.

The square root of 137897108 is about 11742.9599335091. The cubic root of 137897108 is about 516.6364609928.

The spelling of 137897108 in words is "one hundred thirty-seven million, eight hundred ninety-seven thousand, one hundred eight".