157037438 has 4 divisors (see below), whose sum is σ = 235556160. Its totient is φ = 78518718.

The previous prime is 157037431. The next prime is 157037443. The reversal of 157037438 is 834730751.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157037431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39259358 + ... + 39259361.

It is an arithmetic number, because the mean of its divisors is an integer number (58889040).

Almost surely, 2^157037438 is an apocalyptic number.

157037438 is a deficient number, since it is larger than the sum of its proper divisors (78518722).

157037438 is an equidigital number, since it uses as much as digits as its factorization.

157037438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78518721.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 157037438 is about 12531.4579359307. The cubic root of 157037438 is about 539.5119481493.

The spelling of 157037438 in words is "one hundred fifty-seven million, thirty-seven thousand, four hundred thirty-eight".