2155792 has 20 divisors (see below), whose sum is σ = 4241296. Its totient is φ = 1061280.

The previous prime is 2155781. The next prime is 2155793. The reversal of 2155792 is 2975512.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2155793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67 + ... + 2077.

2^2155792 is an apocalyptic number.

It is an amenable number.

2155792 is a deficient number, since it is larger than the sum of its proper divisors (2085504).

2155792 is a wasteful number, since it uses less digits than its factorization.

2155792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2086 (or 2080 counting only the distinct ones).

The product of its digits is 6300, while the sum is 31.

The square root of 2155792 is about 1468.2615570803. The cubic root of 2155792 is about 129.1820836726.

The spelling of 2155792 in words is "two million, one hundred fifty-five thousand, seven hundred ninety-two".