157200122 has 16 divisors (see below), whose sum is σ = 250094952. Its totient is φ = 73850880.

The previous prime is 157200119. The next prime is 157200133. The reversal of 157200122 is 221002751.

157200122 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 152794321 + 4405801 = 12361^2 + 2099^2 .

It is a junction number, because it is equal to n+sod(n) for n = 157200094 and 157200103.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18188 + ... + 25400.

Almost surely, 2^157200122 is an apocalyptic number.

157200122 is a deficient number, since it is larger than the sum of its proper divisors (92894830).

157200122 is a wasteful number, since it uses less digits than its factorization.

157200122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 157200122 is about 12537.9472801571. The cubic root of 157200122 is about 539.6981875405.

Adding to 157200122 its reverse (221002751), we get a palindrome (378202873).

The spelling of 157200122 in words is "one hundred fifty-seven million, two hundred thousand, one hundred twenty-two".