45023831 has 2 divisors, whose sum is σ = 45023832. Its totient is φ = 45023830.

The previous prime is 45023809. The next prime is 45023851. The reversal of 45023831 is 13832054.

45023831 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 45023831 - 2¹⁸ = 44761687 is a prime.

It is a super-2 number, since 2×45023831² = 4054290715833122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45023831.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45023801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22511915 + 22511916.

It is an arithmetic number, because the mean of its divisors is an integer number (22511916).

Almost surely, 2^45023831 is an apocalyptic number.

45023831 is a deficient number, since it is larger than the sum of its proper divisors (1).

45023831 is an equidigital number, since it uses as much as digits as its factorization.

45023831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 45023831 is about 6709.9799552607. The cubic root of 45023831 is about 355.7521077569.

Adding to 45023831 its reverse (13832054), we get a palindrome (58855885).

It can be divided in two parts, 45023 and 831, that added together give a palindrome (45854).

The spelling of 45023831 in words is "forty-five million, twenty-three thousand, eight hundred thirty-one".