245863 has 2 divisors, whose sum is σ = 245864. Its totient is φ = 245862.

The previous prime is 245851. The next prime is 245881. The reversal of 245863 is 368542.

245863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245863 is a prime.

It is a super-3 number, since 3×245863³ = 44586233318851941, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122931 + 122932.

It is an arithmetic number, because the mean of its divisors is an integer number (122932).

2²⁴⁵⁸⁶³ is an apocalyptic number.

245863 is a deficient number, since it is larger than the sum of its proper divisors (1).

245863 is an equidigital number, since it uses as much as digits as its factorization.

245863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 245863 is about 495.8457421416. The cubic root of 245863 is about 62.6466317172.

The spelling of 245863 in words is "two hundred forty-five thousand, eight hundred sixty-three".