45512331 has 16 divisors (see below), whose sum is σ = 65036544. Its totient is φ = 28236384.

The previous prime is 45512329. The next prime is 45512333. The reversal of 45512331 is 13321554.

It is an interprime number because it is at equal distance from previous prime (45512329) and next prime (45512333).

It is not a de Polignac number, because 45512331 - 2¹ = 45512329 is a prime.

It is a super-2 number, since 2×45512331² = 4142744546107122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (45512333) 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, 6361 + ... + 11466.

It is an arithmetic number, because the mean of its divisors is an integer number (4064784).

Almost surely, 2^45512331 is an apocalyptic number.

45512331 is a deficient number, since it is larger than the sum of its proper divisors (19524213).

45512331 is a wasteful number, since it uses less digits than its factorization.

45512331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17890.

The product of its digits is 1800, while the sum is 24.

The square root of 45512331 is about 6746.2827542284. The cubic root of 45512331 is about 357.0340966578.

Adding to 45512331 its reverse (13321554), we get a palindrome (58833885).

The spelling of 45512331 in words is "forty-five million, five hundred twelve thousand, three hundred thirty-one".