45106909 has 4 divisors (see below), whose sum is σ = 45211516. Its totient is φ = 45002304.

The previous prime is 45106907. The next prime is 45106927. The reversal of 45106909 is 90960154.

45106909 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8468100 + 36638809 = 2910^2 + 6053^2 .

It is a cyclic number.

It is not a de Polignac number, because 45106909 - 2¹ = 45106907 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 (45106907) 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 in 3 ways as a sum of consecutive naturals, for example, 51654 + ... + 52519.

It is an arithmetic number, because the mean of its divisors is an integer number (11302879).

Almost surely, 2^45106909 is an apocalyptic number.

It is an amenable number.

45106909 is a deficient number, since it is larger than the sum of its proper divisors (104607).

45106909 is a wasteful number, since it uses less digits than its factorization.

45106909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104606.

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 45106909 is about 6716.1677316756. The cubic root of 45106909 is about 355.9707846454.

The spelling of 45106909 in words is "forty-five million, one hundred six thousand, nine hundred nine".