45144645 has 32 divisors (see below), whose sum is σ = 88902912. Its totient is φ = 19049472.

The previous prime is 45144623. The next prime is 45144661. The reversal of 45144645 is 54644154.

It is not a de Polignac number, because 45144645 - 2¹¹ = 45142597 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15172 + ... + 17901.

It is an arithmetic number, because the mean of its divisors is an integer number (2778216).

Almost surely, 2^45144645 is an apocalyptic number.

It is an amenable number.

45144645 is a deficient number, since it is larger than the sum of its proper divisors (43758267).

45144645 is a wasteful number, since it uses less digits than its factorization.

45144645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33101.

The product of its digits is 38400, while the sum is 33.

The square root of 45144645 is about 6718.9764845548. The cubic root of 45144645 is about 356.0700242047.

Adding to 45144645 its reverse (54644154), we get a palindrome (99788799).

The spelling of 45144645 in words is "forty-five million, one hundred forty-four thousand, six hundred forty-five".