245373609 has 16 divisors (see below), whose sum is σ = 360527552. Its totient is φ = 147486528.

The previous prime is 245373599. The next prime is 245373671. The reversal of 245373609 is 906373542.

It is not a de Polignac number, because 245373609 - 2⁴ = 245373593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245373679) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71482 + ... + 74835.

It is an arithmetic number, because the mean of its divisors is an integer number (22532972).

Almost surely, 2^245373609 is an apocalyptic number.

It is an amenable number.

245373609 is a deficient number, since it is larger than the sum of its proper divisors (115153943).

245373609 is a wasteful number, since it uses less digits than its factorization.

245373609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146376.

The product of its (nonzero) digits is 136080, while the sum is 39.

The square root of 245373609 is about 15664.4057978590. The cubic root of 245373609 is about 626.0503800805.

The spelling of 245373609 in words is "two hundred forty-five million, three hundred seventy-three thousand, six hundred nine".