156422122 has 8 divisors (see below), whose sum is σ = 236424672. Its totient is φ = 77613900.

The previous prime is 156422113. The next prime is 156422131. The reversal of 156422122 is 221224651.

It is an interprime number because it is at equal distance from previous prime (156422113) and next prime (156422131).

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

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, 298254 + ... + 298777.

It is an arithmetic number, because the mean of its divisors is an integer number (29553084).

Almost surely, 2^156422122 is an apocalyptic number.

156422122 is a deficient number, since it is larger than the sum of its proper divisors (80002550).

156422122 is a wasteful number, since it uses less digits than its factorization.

156422122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597164.

The product of its digits is 1920, while the sum is 25.

The square root of 156422122 is about 12506.8829849807. The cubic root of 156422122 is about 538.8063735886.

Adding to 156422122 its reverse (221224651), we get a palindrome (377646773).

The spelling of 156422122 in words is "one hundred fifty-six million, four hundred twenty-two thousand, one hundred twenty-two".