157287230 has 32 divisors (see below), whose sum is σ = 300394656. Its totient is φ = 59090944.

The previous prime is 157287203. The next prime is 157287233. The reversal of 157287230 is 32782751.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157287233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 160502 + ... + 161478.

It is an arithmetic number, because the mean of its divisors is an integer number (9387333).

Almost surely, 2^157287230 is an apocalyptic number.

157287230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157287230 is a deficient number, since it is larger than the sum of its proper divisors (143107426).

157287230 is a wasteful number, since it uses less digits than its factorization.

157287230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1948.

The product of its (nonzero) digits is 23520, while the sum is 35.

The square root of 157287230 is about 12541.4205734438. The cubic root of 157287230 is about 539.7978552938.

The spelling of 157287230 in words is "one hundred fifty-seven million, two hundred eighty-seven thousand, two hundred thirty".