45409117 has 6 divisors (see below), whose sum is σ = 49171002. Its totient is φ = 41915952.

The previous prime is 45409109. The next prime is 45409123. The reversal of 45409117 is 71190454.

It can be written as a sum of positive squares in 3 ways, for example, as 4372281 + 41036836 = 2091^2 + 6406^2 .

It is not a de Polignac number, because 45409117 - 2³ = 45409109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45409517) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 134178 + ... + 134515.

It is an arithmetic number, because the mean of its divisors is an integer number (8195167).

Almost surely, 2^45409117 is an apocalyptic number.

It is an amenable number.

45409117 is a deficient number, since it is larger than the sum of its proper divisors (3761885).

45409117 is a wasteful number, since it uses less digits than its factorization.

45409117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268719 (or 268706 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 45409117 is about 6738.6287180702. The cubic root of 45409117 is about 356.7639954293.

The spelling of 45409117 in words is "forty-five million, four hundred nine thousand, one hundred seventeen".