2045772331 has 2 divisors, whose sum is σ = 2045772332. Its totient is φ = 2045772330.

The previous prime is 2045772241. The next prime is 2045772347. The reversal of 2045772331 is 1332775402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2045772331 - 2²⁵ = 2012217899 is a prime.

It is a super-2 number, since 2×2045772331² = 8370368860570347122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2045772361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1022886165 + 1022886166.

It is an arithmetic number, because the mean of its divisors is an integer number (1022886166).

Almost surely, 2^2045772331 is an apocalyptic number.

2045772331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2045772331 is an equidigital number, since it uses as much as digits as its factorization.

2045772331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 2045772331 is about 45230.2148016124. The cubic root of 2045772331 is about 1269.4602312838.

The spelling of 2045772331 in words is "two billion, forty-five million, seven hundred seventy-two thousand, three hundred thirty-one".