45318519 has 12 divisors (see below), whose sum is σ = 66382992. Its totient is φ = 29786400.

The previous prime is 45318479. The next prime is 45318541. The reversal of 45318519 is 91581354.

It is not a de Polignac number, because 45318519 - 2¹⁹ = 44794231 is a prime.

It is a super-2 number, since 2×45318519² = 4107536328706722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45318569) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34822 + ... + 36099.

It is an arithmetic number, because the mean of its divisors is an integer number (5531916).

Almost surely, 2^45318519 is an apocalyptic number.

45318519 is a deficient number, since it is larger than the sum of its proper divisors (21064473).

45318519 is a wasteful number, since it uses less digits than its factorization.

45318519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70998 (or 70995 counting only the distinct ones).

The product of its digits is 21600, while the sum is 36.

The square root of 45318519 is about 6731.9030741686. The cubic root of 45318519 is about 356.5265715648.

The spelling of 45318519 in words is "forty-five million, three hundred eighteen thousand, five hundred nineteen".