137965788 has 24 divisors (see below), whose sum is σ = 357689360. Its totient is φ = 45988560.

The previous prime is 137965787. The next prime is 137965811. The reversal of 137965788 is 887569731.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137965787) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 638623 + ... + 638838.

Almost surely, 2^137965788 is an apocalyptic number.

137965788 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

137965788 is an abundant number, since it is smaller than the sum of its proper divisors (219723572).

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

137965788 is a wasteful number, since it uses less digits than its factorization.

137965788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1277474 (or 1277466 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 54.

The square root of 137965788 is about 11745.8838747878. The cubic root of 137965788 is about 516.7222174518.

The spelling of 137965788 in words is "one hundred thirty-seven million, nine hundred sixty-five thousand, seven hundred eighty-eight".