45915217 has 2 divisors, whose sum is σ = 45915218. Its totient is φ = 45915216.

The previous prime is 45915197. The next prime is 45915223. The reversal of 45915217 is 71251954.

45915217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38738176 + 7177041 = 6224^2 + 2679^2 .

It is a cyclic number.

It is not a de Polignac number, because 45915217 - 2¹¹ = 45913169 is a prime.

It is not a weakly prime, because it can be changed into another prime (45915257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22957608 + 22957609.

It is an arithmetic number, because the mean of its divisors is an integer number (22957609).

Almost surely, 2^45915217 is an apocalyptic number.

It is an amenable number.

45915217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45915217 is an equidigital number, since it uses as much as digits as its factorization.

45915217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12600, while the sum is 34.

The square root of 45915217 is about 6776.0768147948. The cubic root of 45915217 is about 358.0845201645.

The spelling of 45915217 in words is "forty-five million, nine hundred fifteen thousand, two hundred seventeen".