137919957 has 16 divisors (see below), whose sum is σ = 214454400. Its totient is φ = 78810816.

The previous prime is 137919953. The next prime is 137919959. The reversal of 137919957 is 759919731.

It is not a de Polignac number, because 137919957 - 2² = 137919953 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137919953) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65988 + ... + 68045.

It is an arithmetic number, because the mean of its divisors is an integer number (13403400).

Almost surely, 2^137919957 is an apocalyptic number.

It is an amenable number.

137919957 is a deficient number, since it is larger than the sum of its proper divisors (76534443).

137919957 is an equidigital number, since it uses as much as digits as its factorization.

137919957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134057 (or 134043 counting only the distinct ones).

The product of its digits is 535815, while the sum is 51.

The square root of 137919957 is about 11743.9327739902. The cubic root of 137919957 is about 516.6649942829.

The spelling of 137919957 in words is "one hundred thirty-seven million, nine hundred nineteen thousand, nine hundred fifty-seven".