157137994 has 16 divisors (see below), whose sum is σ = 260031240. Its totient is φ = 70755840.

The previous prime is 157137983. The next prime is 157138027. The reversal of 157137994 is 499731751.

157137994 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 87665769 + 69472225 = 9363^2 + 8335^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72639 + ... + 74770.

Almost surely, 2^157137994 is an apocalyptic number.

157137994 is a deficient number, since it is larger than the sum of its proper divisors (102893246).

157137994 is a wasteful number, since it uses less digits than its factorization.

157137994 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147465.

The product of its digits is 238140, while the sum is 46.

The square root of 157137994 is about 12535.4694367622. The cubic root of 157137994 is about 539.6270790563.

The spelling of 157137994 in words is "one hundred fifty-seven million, one hundred thirty-seven thousand, nine hundred ninety-four".