157287165 has 32 divisors (see below), whose sum is σ = 288921600. Its totient is φ = 71575104.

The previous prime is 157287157. The next prime is 157287167. The reversal of 157287165 is 561782751.

It is not a de Polignac number, because 157287165 - 2³ = 157287157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157287167) 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, 20536 + ... + 27134.

It is an arithmetic number, because the mean of its divisors is an integer number (9028800).

Almost surely, 2^157287165 is an apocalyptic number.

157287165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

157287165 is a deficient number, since it is larger than the sum of its proper divisors (131634435).

157287165 is a wasteful number, since it uses less digits than its factorization.

157287165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6841.

The product of its digits is 117600, while the sum is 42.

The square root of 157287165 is about 12541.4179820306. The cubic root of 157287165 is about 539.7977809355.

The spelling of 157287165 in words is "one hundred fifty-seven million, two hundred eighty-seven thousand, one hundred sixty-five".