137897616 has 40 divisors (see below), whose sum is σ = 359056384. Its totient is φ = 45601920.

The previous prime is 137897609. The next prime is 137897621. The reversal of 137897616 is 616798731.

It is a happy number.

137897616 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (48).

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, 5215 + ... + 17406.

Almost surely, 2^137897616 is an apocalyptic number.

137897616 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

137897616 is an abundant number, since it is smaller than the sum of its proper divisors (221158768).

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

137897616 is a wasteful number, since it uses less digits than its factorization.

137897616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22759 (or 22753 counting only the distinct ones).

The product of its digits is 381024, while the sum is 48.

The square root of 137897616 is about 11742.9815634702. The cubic root of 137897616 is about 516.6370954055.

The spelling of 137897616 in words is "one hundred thirty-seven million, eight hundred ninety-seven thousand, six hundred sixteen".