137765388 has 12 divisors (see below), whose sum is σ = 321452600. Its totient is φ = 45921792.

The previous prime is 137765387. The next prime is 137765437. The reversal of 137765388 is 883567731.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (137765387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5740213 + ... + 5740236.

Almost surely, 2^137765388 is an apocalyptic number.

It is an amenable number.

137765388 is an abundant number, since it is smaller than the sum of its proper divisors (183687212).

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

137765388 is a wasteful number, since it uses less digits than its factorization.

137765388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11480456 (or 11480454 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 137765388 is about 11737.3501268387. The cubic root of 137765388 is about 516.4719106872.

The spelling of 137765388 in words is "one hundred thirty-seven million, seven hundred sixty-five thousand, three hundred eighty-eight".