245979 has 12 divisors (see below), whose sum is σ = 359632. Its totient is φ = 162000.

The previous prime is 245977. The next prime is 245981. The reversal of 245979 is 979542.

It is an interprime number because it is at equal distance from previous prime (245977) and next prime (245981).

It is not a de Polignac number, because 245979 - 2¹ = 245977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (245977) 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, 1269 + ... + 1449.

2²⁴⁵⁹⁷⁹ is an apocalyptic number.

245979 is a deficient number, since it is larger than the sum of its proper divisors (113653).

245979 is a wasteful number, since it uses less digits than its factorization.

245979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 335 counting only the distinct ones).

The product of its digits is 22680, while the sum is 36.

The square root of 245979 is about 495.9627002104. The cubic root of 245979 is about 62.6564825511.

The spelling of 245979 in words is "two hundred forty-five thousand, nine hundred seventy-nine".