157881023 has 8 divisors (see below), whose sum is σ = 169183728. Its totient is φ = 146802304.

The previous prime is 157881007. The next prime is 157881041. The reversal of 157881023 is 320188751.

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 157881023 - 2⁴ = 157881007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157889023) 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, 54536 + ... + 57357.

It is an arithmetic number, because the mean of its divisors is an integer number (21147966).

Almost surely, 2^157881023 is an apocalyptic number.

157881023 is a deficient number, since it is larger than the sum of its proper divisors (11302705).

157881023 is a wasteful number, since it uses less digits than its factorization.

157881023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111993.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 157881023 is about 12565.0715477470. The cubic root of 157881023 is about 540.4762864619.

The spelling of 157881023 in words is "one hundred fifty-seven million, eight hundred eighty-one thousand, twenty-three".