45406217 has 2 divisors, whose sum is σ = 45406218. Its totient is φ = 45406216.

The previous prime is 45406177. The next prime is 45406241. The reversal of 45406217 is 71260454.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 45306361 + 99856 = 6731^2 + 316^2 .

It is a cyclic number.

It is not a de Polignac number, because 45406217 - 2²⁴ = 28629001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 45406217.

It is not a weakly prime, because it can be changed into another prime (45406297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22703108 + 22703109.

It is an arithmetic number, because the mean of its divisors is an integer number (22703109).

Almost surely, 2^45406217 is an apocalyptic number.

It is an amenable number.

45406217 is a deficient number, since it is larger than the sum of its proper divisors (1).

45406217 is an equidigital number, since it uses as much as digits as its factorization.

45406217 is an odious number, because the sum of its binary digits is odd.

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

The square root of 45406217 is about 6738.4135373246. The cubic root of 45406217 is about 356.7564004963.

The spelling of 45406217 in words is "forty-five million, four hundred six thousand, two hundred seventeen".