245799 has 12 divisors (see below), whose sum is σ = 366912. Its totient is φ = 158400.

The previous prime is 245789. The next prime is 245821. The reversal of 245799 is 997542.

245799 is nontrivially palindromic in base 8.

It is not a de Polignac number, because 245799 - 2⁴ = 245783 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 245799.

It is not an unprimeable number, because it can be changed into a prime (245719) 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, 162 + ... + 719.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2²⁴⁵⁷⁹⁹ is an apocalyptic number.

245799 is a deficient number, since it is larger than the sum of its proper divisors (121113).

245799 is a wasteful number, since it uses less digits than its factorization.

245799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918 (or 915 counting only the distinct ones).

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

The square root of 245799 is about 495.7812017413. The cubic root of 245799 is about 62.6411954480.

It can be divided in two parts, 2457 and 99, that added together give a triangular number (2556 = T₇₁).

The spelling of 245799 in words is "two hundred forty-five thousand, seven hundred ninety-nine".