157873287 has 32 divisors (see below), whose sum is σ = 248532480. Its totient is φ = 87880320.

The previous prime is 157873259. The next prime is 157873333. The reversal of 157873287 is 782378751.

157873287 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 157873287 - 2¹⁴ = 157856903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157873217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97438 + ... + 99044.

It is an arithmetic number, because the mean of its divisors is an integer number (7766640).

Almost surely, 2^157873287 is an apocalyptic number.

157873287 is a deficient number, since it is larger than the sum of its proper divisors (90659193).

157873287 is a wasteful number, since it uses less digits than its factorization.

157873287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its digits is 658560, while the sum is 48.

The square root of 157873287 is about 12564.7637064929. The cubic root of 157873287 is about 540.4674587325.

The spelling of 157873287 in words is "one hundred fifty-seven million, eight hundred seventy-three thousand, two hundred eighty-seven".