157215800 has 48 divisors (see below), whose sum is σ = 417748560. Its totient is φ = 53902080.

The previous prime is 157215791. The next prime is 157215809. The reversal of 157215800 is 8512751.

It is an interprime number because it is at equal distance from previous prime (157215791) and next prime (157215809).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157215809) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54749 + ... + 57548.

It is an arithmetic number, because the mean of its divisors is an integer number (8703095).

Almost surely, 2^157215800 is an apocalyptic number.

157215800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

157215800 is an abundant number, since it is smaller than the sum of its proper divisors (260532760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

157215800 is a wasteful number, since it uses less digits than its factorization.

157215800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112320 (or 112311 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 29.

The square root of 157215800 is about 12538.5724865313. The cubic root of 157215800 is about 539.7161288050.

The spelling of 157215800 in words is "one hundred fifty-seven million, two hundred fifteen thousand, eight hundred".