245044665 has 24 divisors (see below), whose sum is σ = 426666240. Its totient is φ = 130099104.

The previous prime is 245044663. The next prime is 245044669. The reversal of 245044665 is 566440542.

It is not a de Polignac number, because 245044665 - 2¹ = 245044663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (245044663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2175 + ... + 22244.

It is an arithmetic number, because the mean of its divisors is an integer number (17777760).

Almost surely, 2^245044665 is an apocalyptic number.

It is an amenable number.

245044665 is a deficient number, since it is larger than the sum of its proper divisors (181621575).

245044665 is a wasteful number, since it uses less digits than its factorization.

245044665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24653 (or 24650 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The square root of 245044665 is about 15653.9025485660. The cubic root of 245044665 is about 625.7704972108.

The spelling of 245044665 in words is "two hundred forty-five million, forty-four thousand, six hundred sixty-five".