45409369 has 2 divisors, whose sum is σ = 45409370. Its totient is φ = 45409368.

The previous prime is 45409367. The next prime is 45409387. The reversal of 45409369 is 96390454.

45409369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 17530969 = 5280^2 + 4187^2 .

It is a cyclic number.

It is not a de Polignac number, because 45409369 - 2¹ = 45409367 is a prime.

It is a super-2 number, since 2×45409369² = 4124021585956322, which contains 22 as substring.

Together with 45409367, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (45409361) 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, 22704684 + 22704685.

It is an arithmetic number, because the mean of its divisors is an integer number (22704685).

Almost surely, 2^45409369 is an apocalyptic number.

It is an amenable number.

45409369 is a deficient number, since it is larger than the sum of its proper divisors (1).

45409369 is an equidigital number, since it uses as much as digits as its factorization.

45409369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 45409369 is about 6738.6474162105. The cubic root of 45409369 is about 356.7646553876.

The spelling of 45409369 in words is "forty-five million, four hundred nine thousand, three hundred sixty-nine".