157793815 has 16 divisors (see below), whose sum is σ = 192099456. Its totient is φ = 124416000.

The previous prime is 157793771. The next prime is 157793821. The reversal of 157793815 is 518397751.

It is not a de Polignac number, because 157793815 - 2⁷ = 157793687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136279 + ... + 137431.

It is an arithmetic number, because the mean of its divisors is an integer number (12006216).

Almost surely, 2^157793815 is an apocalyptic number.

157793815 is a deficient number, since it is larger than the sum of its proper divisors (34305641).

157793815 is a wasteful number, since it uses less digits than its factorization.

157793815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530.

The product of its digits is 264600, while the sum is 46.

The square root of 157793815 is about 12561.6008135906. The cubic root of 157793815 is about 540.3767546835.

The spelling of 157793815 in words is "one hundred fifty-seven million, seven hundred ninety-three thousand, eight hundred fifteen".