157037638 has 8 divisors (see below), whose sum is σ = 235617480. Its totient is φ = 78498480.

The previous prime is 157037633. The next prime is 157037651. The reversal of 157037638 is 836730751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157037638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157037633) 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, 2778 + ... + 17938.

It is an arithmetic number, because the mean of its divisors is an integer number (29452185).

Almost surely, 2^157037638 is an apocalyptic number.

157037638 is a deficient number, since it is larger than the sum of its proper divisors (78579842).

157037638 is a wasteful number, since it uses less digits than its factorization.

157037638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20342.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 157037638 is about 12531.4659158456. The cubic root of 157037638 is about 539.5121771867.

The spelling of 157037638 in words is "one hundred fifty-seven million, thirty-seven thousand, six hundred thirty-eight".