45311217 has 8 divisors (see below), whose sum is σ = 69045696. Its totient is φ = 25892112.

The previous prime is 45311209. The next prime is 45311251. The reversal of 45311217 is 71211354.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 45311217 - 2³ = 45311209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (45311267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1078818 + ... + 1078859.

It is an arithmetic number, because the mean of its divisors is an integer number (8630712).

Almost surely, 2^45311217 is an apocalyptic number.

It is an amenable number.

45311217 is a deficient number, since it is larger than the sum of its proper divisors (23734479).

45311217 is a wasteful number, since it uses less digits than its factorization.

45311217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157687.

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

The square root of 45311217 is about 6731.3607093960. The cubic root of 45311217 is about 356.5074219477.

The spelling of 45311217 in words is "forty-five million, three hundred eleven thousand, two hundred seventeen".