157801873 has 16 divisors (see below), whose sum is σ = 173961216. Its totient is φ = 142647120.

The previous prime is 157801867. The next prime is 157801879. The reversal of 157801873 is 378108751.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (157801867) and next prime (157801879).

It is a de Polignac number, because none of the positive numbers 2^k-157801873 is a prime.

It is a super-2 number, since 2×157801873² = 49802862244616258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157801879) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28086 + ... + 33232.

It is an arithmetic number, because the mean of its divisors is an integer number (10872576).

Almost surely, 2^157801873 is an apocalyptic number.

It is an amenable number.

157801873 is a deficient number, since it is larger than the sum of its proper divisors (16159343).

157801873 is a wasteful number, since it uses less digits than its factorization.

157801873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5244.

The product of its (nonzero) digits is 47040, while the sum is 40.

The square root of 157801873 is about 12561.9215488714. The cubic root of 157801873 is about 540.3859529354.

The spelling of 157801873 in words is "one hundred fifty-seven million, eight hundred one thousand, eight hundred seventy-three".