157170210 has 16 divisors (see below), whose sum is σ = 377208576. Its totient is φ = 41912048.

The previous prime is 157170199. The next prime is 157170239. The reversal of 157170210 is 12071751.

It is a happy number.

It is a super-2 number, since 2×157170210² = 49404949822888200, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2619474 + ... + 2619533.

It is an arithmetic number, because the mean of its divisors is an integer number (23575536).

Almost surely, 2^157170210 is an apocalyptic number.

157170210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157170210 is an abundant number, since it is smaller than the sum of its proper divisors (220038366).

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

157170210 is a wasteful number, since it uses less digits than its factorization.

157170210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5239017.

The product of its (nonzero) digits is 490, while the sum is 24.

The square root of 157170210 is about 12536.7543646671. The cubic root of 157170210 is about 539.6639541570.

The spelling of 157170210 in words is "one hundred fifty-seven million, one hundred seventy thousand, two hundred ten".