45312117 has 4 divisors (see below), whose sum is σ = 60416160. Its totient is φ = 30208076.

The previous prime is 45312079. The next prime is 45312119. The reversal of 45312117 is 71121354.

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.

It is a cyclic number.

It is not a de Polignac number, because 45312117 - 2⁶ = 45312053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45312119) 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, 7552017 + ... + 7552022.

It is an arithmetic number, because the mean of its divisors is an integer number (15104040).

Almost surely, 2^45312117 is an apocalyptic number.

It is an amenable number.

45312117 is a deficient number, since it is larger than the sum of its proper divisors (15104043).

45312117 is a wasteful number, since it uses less digits than its factorization.

45312117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15104042.

The product of its digits is 840, while the sum is 24.

The square root of 45312117 is about 6731.4275603322. The cubic root of 45312117 is about 356.5097823239.

The spelling of 45312117 in words is "forty-five million, three hundred twelve thousand, one hundred seventeen".