2045901 has 32 divisors (see below), whose sum is σ = 3386880. Its totient is φ = 1080000.

The previous prime is 2045891. The next prime is 2045903. The reversal of 2045901 is 1095402.

It is not a de Polignac number, because 2045901 - 2⁶ = 2045837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8026 + ... + 8276.

It is an arithmetic number, because the mean of its divisors is an integer number (105840).

2^2045901 is an apocalyptic number.

It is an amenable number.

2045901 is a deficient number, since it is larger than the sum of its proper divisors (1340979).

2045901 is a wasteful number, since it uses less digits than its factorization.

2045901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2045901 is about 1430.3499571783. The cubic root of 2045901 is about 126.9486844990.

It can be divided in two parts, 204 and 5901, that added together give a triangular number (6105 = T₁₁₀).

The spelling of 2045901 in words is "two million, forty-five thousand, nine hundred one".