245911 has 2 divisors, whose sum is σ = 245912. Its totient is φ = 245910.

The previous prime is 245909. The next prime is 245941. The reversal of 245911 is 119542.

245911 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 not a de Polignac number, because 245911 - 2¹ = 245909 is a prime.

Together with 245909, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122955 + 122956.

It is an arithmetic number, because the mean of its divisors is an integer number (122956).

2²⁴⁵⁹¹¹ is an apocalyptic number.

245911 is a deficient number, since it is larger than the sum of its proper divisors (1).

245911 is an equidigital number, since it uses as much as digits as its factorization.

245911 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 245911 is about 495.8941419295. The cubic root of 245911 is about 62.6507083000.

It can be divided in two parts, 245 and 911, that added together give a square (1156 = 34²).

The spelling of 245911 in words is "two hundred forty-five thousand, nine hundred eleven".