45445217 has 8 divisors (see below), whose sum is σ = 47546880. Its totient is φ = 43354080.

The previous prime is 45445189. The next prime is 45445219. The reversal of 45445217 is 71254454.

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

It is not a de Polignac number, because 45445217 - 2¹⁴ = 45428833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45445219) 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, 6992 + ... + 11822.

It is an arithmetic number, because the mean of its divisors is an integer number (5943360).

Almost surely, 2^45445217 is an apocalyptic number.

It is an amenable number.

45445217 is a deficient number, since it is larger than the sum of its proper divisors (2101663).

45445217 is a wasteful number, since it uses less digits than its factorization.

45445217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5263.

The product of its digits is 22400, while the sum is 32.

The square root of 45445217 is about 6741.3067724292. The cubic root of 45445217 is about 356.8585121962.

The spelling of 45445217 in words is "forty-five million, four hundred forty-five thousand, two hundred seventeen".