156164122 has 4 divisors (see below), whose sum is σ = 234246186. Its totient is φ = 78082060.

The previous prime is 156164111. The next prime is 156164131. The reversal of 156164122 is 221461651.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 152992161 + 3171961 = 12369^2 + 1781^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39041029 + ... + 39041032.

Almost surely, 2^156164122 is an apocalyptic number.

156164122 is a deficient number, since it is larger than the sum of its proper divisors (78082064).

156164122 is an equidigital number, since it uses as much as digits as its factorization.

156164122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78082063.

The product of its digits is 2880, while the sum is 28.

The square root of 156164122 is about 12496.5644078683. The cubic root of 156164122 is about 538.5099778684.

The spelling of 156164122 in words is "one hundred fifty-six million, one hundred sixty-four thousand, one hundred twenty-two".