137157757 has 4 divisors (see below), whose sum is σ = 149626656. Its totient is φ = 124688860.

The previous prime is 137157743. The next prime is 137157767. The reversal of 137157757 is 757751731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-137157757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137157767) 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, 6234433 + ... + 6234454.

It is an arithmetic number, because the mean of its divisors is an integer number (37406664).

Almost surely, 2^137157757 is an apocalyptic number.

It is an amenable number.

137157757 is a deficient number, since it is larger than the sum of its proper divisors (12468899).

137157757 is a wasteful number, since it uses less digits than its factorization.

137157757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12468898.

The product of its digits is 180075, while the sum is 43.

The square root of 137157757 is about 11711.4370168652. The cubic root of 137157757 is about 515.7114708582.

The spelling of 137157757 in words is "one hundred thirty-seven million, one hundred fifty-seven thousand, seven hundred fifty-seven".