157973793 has 8 divisors (see below), whose sum is σ = 213598656. Its totient is φ = 103832400.

The previous prime is 157973791. The next prime is 157973819. The reversal of 157973793 is 397379751.

157973793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 157973793 - 2¹ = 157973791 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (157973791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370618 + ... + 371043.

It is an arithmetic number, because the mean of its divisors is an integer number (26699832).

Almost surely, 2^157973793 is an apocalyptic number.

It is an amenable number.

157973793 is a deficient number, since it is larger than the sum of its proper divisors (55624863).

157973793 is an equidigital number, since it uses as much as digits as its factorization.

157973793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741735.

The product of its digits is 1250235, while the sum is 51.

The square root of 157973793 is about 12568.7625882582. The cubic root of 157973793 is about 540.5821260085.

It can be divided in two parts, 157973 and 793, that added together give a triangular number (158766 = T₅₆₃).

The spelling of 157973793 in words is "one hundred fifty-seven million, nine hundred seventy-three thousand, seven hundred ninety-three".