162156122 has 4 divisors (see below), whose sum is σ = 243234186. Its totient is φ = 81078060.

The previous prime is 162156121. The next prime is 162156143. The reversal of 162156122 is 221651261.

162156122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 161772961 + 383161 = 12719^2 + 619^2 .

It is a junction number, because it is equal to n+sod(n) for n = 162156091 and 162156100.

It is not an unprimeable number, because it can be changed into a prime (162156121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40539029 + ... + 40539032.

Almost surely, 2^162156122 is an apocalyptic number.

162156122 is a deficient number, since it is larger than the sum of its proper divisors (81078064).

162156122 is an equidigital number, since it uses as much as digits as its factorization.

162156122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81078063.

The product of its digits is 1440, while the sum is 26.

The square root of 162156122 is about 12734.0536358223. The cubic root of 162156122 is about 545.3112404527.

The spelling of 162156122 in words is "one hundred sixty-two million, one hundred fifty-six thousand, one hundred twenty-two".