157030389 has 24 divisors (see below), whose sum is σ = 235418040. Its totient is φ = 100743552.

The previous prime is 157030381. The next prime is 157030403. The reversal of 157030389 is 983030751.

157030389 is a `hidden beast` number, since 1 + 570 + 3 + 0 + 3 + 89 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 34751025 + 122279364 = 5895^2 + 11058^2 .

It is not a de Polignac number, because 157030389 - 2³ = 157030381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157030381) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96547 + ... + 98159.

It is an arithmetic number, because the mean of its divisors is an integer number (9809085).

Almost surely, 2^157030389 is an apocalyptic number.

It is an amenable number.

157030389 is a deficient number, since it is larger than the sum of its proper divisors (78387651).

157030389 is a wasteful number, since it uses less digits than its factorization.

157030389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2021 (or 2018 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 157030389 is about 12531.1766805835. The cubic root of 157030389 is about 539.5038756016.

The spelling of 157030389 in words is "one hundred fifty-seven million, thirty thousand, three hundred eighty-nine".