45319172 has 6 divisors (see below), whose sum is σ = 79308558. Its totient is φ = 22659584.

The previous prime is 45319171. The next prime is 45319193. The reversal of 45319172 is 27191354.

It can be written as a sum of positive squares in only one way, i.e., 28558336 + 16760836 = 5344^2 + 4094^2 .

It is not an unprimeable number, because it can be changed into a prime (45319171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5664893 + ... + 5664900.

It is an arithmetic number, because the mean of its divisors is an integer number (13218093).

Almost surely, 2^45319172 is an apocalyptic number.

It is an amenable number.

45319172 is a deficient number, since it is larger than the sum of its proper divisors (33989386).

45319172 is a wasteful number, since it uses less digits than its factorization.

45319172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11329797 (or 11329795 counting only the distinct ones).

The product of its digits is 7560, while the sum is 32.

The square root of 45319172 is about 6731.9515743951. The cubic root of 45319172 is about 356.5282839680.

The spelling of 45319172 in words is "forty-five million, three hundred nineteen thousand, one hundred seventy-two".