2045265431 has 16 divisors (see below), whose sum is σ = 2350152960. Its totient is φ = 1760330880.

The previous prime is 2045265421. The next prime is 2045265433. The reversal of 2045265431 is 1345625402.

It is a de Polignac number, because none of the positive numbers 2^k-2045265431 is a prime.

It is a super-2 number, since 2×2045265431² = 8366221366487231522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2045265433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 551375 + ... + 555071.

It is an arithmetic number, because the mean of its divisors is an integer number (146884560).

Almost surely, 2^2045265431 is an apocalyptic number.

2045265431 is a deficient number, since it is larger than the sum of its proper divisors (304887529).

2045265431 is a wasteful number, since it uses less digits than its factorization.

2045265431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2045265431 is about 45224.6108993765. The cubic root of 2045265431 is about 1269.3553739744.

The spelling of 2045265431 in words is "two billion, forty-five million, two hundred sixty-five thousand, four hundred thirty-one".