609945075 has 18 divisors (see below), whose sum is σ = 1092479804. Its totient is φ = 325303920.

The previous prime is 609945053. The next prime is 609945079. The reversal of 609945075 is 570549906.

It is a happy number.

609945075 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 609945075 - 2⁵ = 609945043 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 609945075.

It is not an unprimeable number, because it can be changed into a prime (609945079) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1355209 + ... + 1355658.

Almost surely, 2^609945075 is an apocalyptic number.

609945075 is a deficient number, since it is larger than the sum of its proper divisors (482534729).

609945075 is a wasteful number, since it uses less digits than its factorization.

609945075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2710883 (or 2710875 counting only the distinct ones).

The product of its (nonzero) digits is 340200, while the sum is 45.

The square root of 609945075 is about 24697.0661213027. The cubic root of 609945075 is about 848.0671537206.

The spelling of 609945075 in words is "six hundred nine million, nine hundred forty-five thousand, seventy-five".