45426217 has 4 divisors (see below), whose sum is σ = 45661780. Its totient is φ = 45190656.

The previous prime is 45426203. The next prime is 45426259. The reversal of 45426217 is 71262454.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 32901696 + 12524521 = 5736^2 + 3539^2 .

It is a cyclic number.

It is not a de Polignac number, because 45426217 - 2⁷ = 45426089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45426287) 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, 117492 + ... + 117877.

It is an arithmetic number, because the mean of its divisors is an integer number (11415445).

Almost surely, 2^45426217 is an apocalyptic number.

It is an amenable number.

45426217 is a deficient number, since it is larger than the sum of its proper divisors (235563).

45426217 is a wasteful number, since it uses less digits than its factorization.

45426217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235562.

The product of its digits is 13440, while the sum is 31.

The square root of 45426217 is about 6739.8974027800. The cubic root of 45426217 is about 356.8087727714.

The spelling of 45426217 in words is "forty-five million, four hundred twenty-six thousand, two hundred seventeen".