2165272 has 8 divisors (see below), whose sum is σ = 4059900. Its totient is φ = 1082632.

The previous prime is 2165249. The next prime is 2165291. The reversal of 2165272 is 2725612.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135322 + ... + 135337.

2^2165272 is an apocalyptic number.

It is an amenable number.

2165272 is a deficient number, since it is larger than the sum of its proper divisors (1894628).

2165272 is a wasteful number, since it uses less digits than its factorization.

2165272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270665 (or 270661 counting only the distinct ones).

The product of its digits is 1680, while the sum is 25.

The square root of 2165272 is about 1471.4863234159. The cubic root of 2165272 is about 129.3711642853.

The spelling of 2165272 in words is "two million, one hundred sixty-five thousand, two hundred seventy-two".