2045138 has 16 divisors (see below), whose sum is σ = 3262680. Its totient is φ = 959616.

The previous prime is 2045129. The next prime is 2045177. The reversal of 2045138 is 8315402.

It can be written as a sum of positive squares in 4 ways, for example, as 1968409 + 76729 = 1403^2 + 277^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1670 + ... + 2622.

2^2045138 is an apocalyptic number.

2045138 is a deficient number, since it is larger than the sum of its proper divisors (1217542).

2045138 is a wasteful number, since it uses less digits than its factorization.

2045138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 2045138 is about 1430.0832143620. The cubic root of 2045138 is about 126.9329010879.

The spelling of 2045138 in words is "two million, forty-five thousand, one hundred thirty-eight".