45315317 has 4 divisors (see below), whose sum is σ = 45362400. Its totient is φ = 45268236.

The previous prime is 45315301. The next prime is 45315337. The reversal of 45315317 is 71351354.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 71351354 = 2 ⋅35675677.

It is a cyclic number.

It is not a de Polignac number, because 45315317 - 2⁴ = 45315301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45315317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45315337) 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, 22067 + ... + 24032.

It is an arithmetic number, because the mean of its divisors is an integer number (11340600).

Almost surely, 2^45315317 is an apocalyptic number.

It is an amenable number.

45315317 is a deficient number, since it is larger than the sum of its proper divisors (47083).

45315317 is an equidigital number, since it uses as much as digits as its factorization.

45315317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47082.

The product of its digits is 6300, while the sum is 29.

The square root of 45315317 is about 6731.6652471732. The cubic root of 45315317 is about 356.5181745195.

The spelling of 45315317 in words is "forty-five million, three hundred fifteen thousand, three hundred seventeen".