158331793 has 8 divisors (see below), whose sum is σ = 170913600. Its totient is φ = 146224848.

The previous prime is 158331781. The next prime is 158331799. The reversal of 158331793 is 397133851.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 158331793 - 2²⁵ = 124777361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (158331799) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 118023 + ... + 119356.

It is an arithmetic number, because the mean of its divisors is an integer number (21364200).

Almost surely, 2^158331793 is an apocalyptic number.

It is an amenable number.

158331793 is a deficient number, since it is larger than the sum of its proper divisors (12581807).

158331793 is a wasteful number, since it uses less digits than its factorization.

158331793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237431.

The product of its digits is 68040, while the sum is 40.

The square root of 158331793 is about 12582.9961853288. The cubic root of 158331793 is about 540.9901734235.

The spelling of 158331793 in words is "one hundred fifty-eight million, three hundred thirty-one thousand, seven hundred ninety-three".