45204217 has 2 divisors, whose sum is σ = 45204218. Its totient is φ = 45204216.

The previous prime is 45204191. The next prime is 45204227. The reversal of 45204217 is 71240254.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42981136 + 2223081 = 6556^2 + 1491^2 .

It is a cyclic number.

It is not a de Polignac number, because 45204217 - 2¹⁵ = 45171449 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45204191 and 45204200.

It is not a weakly prime, because it can be changed into another prime (45204227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22602108 + 22602109.

It is an arithmetic number, because the mean of its divisors is an integer number (22602109).

Almost surely, 2^45204217 is an apocalyptic number.

It is an amenable number.

45204217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45204217 is an equidigital number, since it uses as much as digits as its factorization.

45204217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 45204217 is about 6723.4081387344. The cubic root of 45204217 is about 356.2265764019.

The spelling of 45204217 in words is "forty-five million, two hundred four thousand, two hundred seventeen".