2045574291 has 4 divisors (see below), whose sum is σ = 2727432392. Its totient is φ = 1363716192.

The previous prime is 2045574269. The next prime is 2045574313. The reversal of 2045574291 is 1924755402.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (2045574269) and next prime (2045574313).

It is not a de Polignac number, because 2045574291 - 2⁷ = 2045574163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045574221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340929046 + ... + 340929051.

It is an arithmetic number, because the mean of its divisors is an integer number (681858098).

Almost surely, 2^2045574291 is an apocalyptic number.

2045574291 is a deficient number, since it is larger than the sum of its proper divisors (681858101).

2045574291 is an equidigital number, since it uses as much as digits as its factorization.

2045574291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 681858100.

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2045574291 is about 45228.0255041053. The cubic root of 2045574291 is about 1269.4192668009.

The spelling of 2045574291 in words is "two billion, forty-five million, five hundred seventy-four thousand, two hundred ninety-one".