2156162 has 4 divisors (see below), whose sum is σ = 3234246. Its totient is φ = 1078080.

The previous prime is 2156159. The next prime is 2156171. The reversal of 2156162 is 2616512.

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., 1907161 + 249001 = 1381^2 + 499^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 539039 + ... + 539042.

2^2156162 is an apocalyptic number.

2156162 is a deficient number, since it is larger than the sum of its proper divisors (1078084).

2156162 is a wasteful number, since it uses less digits than its factorization.

2156162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078083.

The product of its digits is 720, while the sum is 23.

The square root of 2156162 is about 1468.3875510232. The cubic root of 2156162 is about 129.1894737851.

The spelling of 2156162 in words is "two million, one hundred fifty-six thousand, one hundred sixty-two".