45105417 has 28 divisors (see below), whose sum is σ = 77296960. Its totient is φ = 25771608.

The previous prime is 45105397. The next prime is 45105421. The reversal of 45105417 is 71450154.

It is a happy number.

It is not a de Polignac number, because 45105417 - 2⁸ = 45105161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45105427) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 684 + ... + 9522.

Almost surely, 2^45105417 is an apocalyptic number.

It is an amenable number.

45105417 is a deficient number, since it is larger than the sum of its proper divisors (32191543).

45105417 is an frugal number, since it uses more digits than its factorization.

45105417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8864 (or 8849 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 45105417 is about 6716.0566555085. The cubic root of 45105417 is about 355.9668597901.

The spelling of 45105417 in words is "forty-five million, one hundred five thousand, four hundred seventeen".