45109117 has 2 divisors, whose sum is σ = 45109118. Its totient is φ = 45109116.

The previous prime is 45109111. The next prime is 45109139. The reversal of 45109117 is 71190154.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24940036 + 20169081 = 4994^2 + 4491^2 .

It is a cyclic number.

It is not a de Polignac number, because 45109117 - 2¹⁵ = 45076349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45109111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22554558 + 22554559.

It is an arithmetic number, because the mean of its divisors is an integer number (22554559).

Almost surely, 2^45109117 is an apocalyptic number.

It is an amenable number.

45109117 is a deficient number, since it is larger than the sum of its proper divisors (1).

45109117 is an equidigital number, since it uses as much as digits as its factorization.

45109117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 45109117 is about 6716.3321091203. The cubic root of 45109117 is about 355.9765928514.

The spelling of 45109117 in words is "forty-five million, one hundred nine thousand, one hundred seventeen".