45169331 has 4 divisors (see below), whose sum is σ = 46271064. Its totient is φ = 44067600.

The previous prime is 45169297. The next prime is 45169339. The reversal of 45169331 is 13396154.

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

It is a cyclic number.

It is not a de Polignac number, because 45169331 - 2²² = 40975027 is a prime.

It is a super-2 number, since 2×45169331² = 4080536925975122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45169339) 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, 550805 + ... + 550886.

It is an arithmetic number, because the mean of its divisors is an integer number (11567766).

Almost surely, 2^45169331 is an apocalyptic number.

45169331 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

45169331 is a deficient number, since it is larger than the sum of its proper divisors (1101733).

45169331 is a wasteful number, since it uses less digits than its factorization.

45169331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1101732.

The product of its digits is 9720, while the sum is 32.

The square root of 45169331 is about 6720.8132692406. The cubic root of 45169331 is about 356.1349144624.

The spelling of 45169331 in words is "forty-five million, one hundred sixty-nine thousand, three hundred thirty-one".