45491313 has 16 divisors (see below), whose sum is σ = 69598080. Its totient is φ = 25890816.

The previous prime is 45491297. The next prime is 45491321. The reversal of 45491313 is 31319454.

It is not a de Polignac number, because 45491313 - 2⁴ = 45491297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45491323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183 + ... + 9611.

It is an arithmetic number, because the mean of its divisors is an integer number (4349880).

Almost surely, 2^45491313 is an apocalyptic number.

It is an amenable number.

45491313 is a deficient number, since it is larger than the sum of its proper divisors (24106767).

45491313 is a wasteful number, since it uses less digits than its factorization.

45491313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8696.

The product of its digits is 6480, while the sum is 30.

The square root of 45491313 is about 6744.7248275967. The cubic root of 45491313 is about 356.9791276862.

The spelling of 45491313 in words is "forty-five million, four hundred ninety-one thousand, three hundred thirteen".