245917 has 12 divisors (see below), whose sum is σ = 302880. Its totient is φ = 195048.

The previous prime is 245911. The next prime is 245941. The reversal of 245917 is 719542.

It is a happy number.

245917 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 245917 - 2³ = 245909 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245911) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5698 + ... + 5740.

It is an arithmetic number, because the mean of its divisors is an integer number (25240).

2²⁴⁵⁹¹⁷ is an apocalyptic number.

It is an amenable number.

245917 is a deficient number, since it is larger than the sum of its proper divisors (56963).

245917 is an equidigital number, since it uses as much as digits as its factorization.

245917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112 (or 69 counting only the distinct ones).

The product of its digits is 2520, while the sum is 28.

The square root of 245917 is about 495.9001915708. The cubic root of 245917 is about 62.6512178356.

The spelling of 245917 in words is "two hundred forty-five thousand, nine hundred seventeen".