157122530 has 8 divisors (see below), whose sum is σ = 282820572. Its totient is φ = 62849008.

The previous prime is 157122529. The next prime is 157122577. The reversal of 157122530 is 35221751.

It can be written as a sum of positive squares in 2 ways, for example, as 156975841 + 146689 = 12529^2 + 383^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 157122530.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7856117 + ... + 7856136.

Almost surely, 2^157122530 is an apocalyptic number.

157122530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

157122530 is a deficient number, since it is larger than the sum of its proper divisors (125698042).

157122530 is a wasteful number, since it uses less digits than its factorization.

157122530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15712260.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 157122530 is about 12534.8526118180. The cubic root of 157122530 is about 539.6093768514.

The spelling of 157122530 in words is "one hundred fifty-seven million, one hundred twenty-two thousand, five hundred thirty".