45144393 has 32 divisors (see below), whose sum is σ = 71663616. Its totient is φ = 24742848.

The previous prime is 45144371. The next prime is 45144431. The reversal of 45144393 is 39344154.

It is not a de Polignac number, because 45144393 - 2⁸ = 45144137 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45144493) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 51880 + ... + 52742.

It is an arithmetic number, because the mean of its divisors is an integer number (2239488).

Almost surely, 2^45144393 is an apocalyptic number.

It is an amenable number.

45144393 is a deficient number, since it is larger than the sum of its proper divisors (26519223).

45144393 is a wasteful number, since it uses less digits than its factorization.

45144393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 973.

The product of its digits is 25920, while the sum is 33.

The square root of 45144393 is about 6718.9577316724. The cubic root of 45144393 is about 356.0693616691.

It can be divided in two parts, 451 and 44393, that added together give a palindrome (44844).

The spelling of 45144393 in words is "forty-five million, one hundred forty-four thousand, three hundred ninety-three".