157230793 has 4 divisors (see below), whose sum is σ = 157352400. Its totient is φ = 157109188.

The previous prime is 157230781. The next prime is 157230809. The reversal of 157230793 is 397032751.

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, and also an emirpimes, since its reverse is a distinct semiprime: 397032751 = 173 ⋅2294987.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157230793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157233793) 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, 58843 + ... + 61456.

It is an arithmetic number, because the mean of its divisors is an integer number (39338100).

Almost surely, 2^157230793 is an apocalyptic number.

It is an amenable number.

157230793 is a deficient number, since it is larger than the sum of its proper divisors (121607).

157230793 is a wasteful number, since it uses less digits than its factorization.

157230793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121606.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 157230793 is about 12539.1703473555. The cubic root of 157230793 is about 539.7332850678.

The spelling of 157230793 in words is "one hundred fifty-seven million, two hundred thirty thousand, seven hundred ninety-three".