45226217 has 2 divisors, whose sum is σ = 45226218. Its totient is φ = 45226216.

The previous prime is 45226199. The next prime is 45226231. The reversal of 45226217 is 71262254.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37503376 + 7722841 = 6124^2 + 2779^2 .

It is a cyclic number.

It is not a de Polignac number, because 45226217 - 2¹⁴ = 45209833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45226217.

It is not a weakly prime, because it can be changed into another prime (45216217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22613108 + 22613109.

It is an arithmetic number, because the mean of its divisors is an integer number (22613109).

Almost surely, 2^45226217 is an apocalyptic number.

It is an amenable number.

45226217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45226217 is an equidigital number, since it uses as much as digits as its factorization.

45226217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 29.

The square root of 45226217 is about 6725.0440147259. The cubic root of 45226217 is about 356.2843565101.

The spelling of 45226217 in words is "forty-five million, two hundred twenty-six thousand, two hundred seventeen".