45237217 has 8 divisors (see below), whose sum is σ = 46000640. Its totient is φ = 44478720.

The previous prime is 45237209. The next prime is 45237223. The reversal of 45237217 is 71273254.

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

It is a cyclic number.

It is not a de Polignac number, because 45237217 - 2³ = 45237209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45237317) 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, 20353 + ... + 22465.

It is an arithmetic number, because the mean of its divisors is an integer number (5750080).

Almost surely, 2^45237217 is an apocalyptic number.

It is an amenable number.

45237217 is a deficient number, since it is larger than the sum of its proper divisors (763423).

45237217 is a wasteful number, since it uses less digits than its factorization.

45237217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2463.

The product of its digits is 11760, while the sum is 31.

The square root of 45237217 is about 6725.8618035163. The cubic root of 45237217 is about 356.3132395377.

It can be divided in two parts, 45237 and 217, that added together give a palindrome (45454).

The spelling of 45237217 in words is "forty-five million, two hundred thirty-seven thousand, two hundred seventeen".