157872373 has 4 divisors (see below), whose sum is σ = 157900480. Its totient is φ = 157844268.

The previous prime is 157872359. The next prime is 157872397. The reversal of 157872373 is 373278751.

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.

It is a cyclic number.

It is not a de Polignac number, because 157872373 - 2¹⁷ = 157741301 is a prime.

It is a super-2 number, since 2×157872373² = 49847372313302258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157872313) 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, 2415 + ... + 17932.

It is an arithmetic number, because the mean of its divisors is an integer number (39475120).

Almost surely, 2^157872373 is an apocalyptic number.

It is an amenable number.

157872373 is a deficient number, since it is larger than the sum of its proper divisors (28107).

157872373 is an equidigital number, since it uses as much as digits as its factorization.

157872373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28106.

The product of its digits is 246960, while the sum is 43.

The square root of 157872373 is about 12564.7273348847. The cubic root of 157872373 is about 540.4664157269.

The spelling of 157872373 in words is "one hundred fifty-seven million, eight hundred seventy-two thousand, three hundred seventy-three".