245957 has 4 divisors (see below), whose sum is σ = 249696. Its totient is φ = 242220.

The previous prime is 245941. The next prime is 245963. The reversal of 245957 is 759542.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 245957 - 2⁴ = 245941 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1769 + ... + 1902.

It is an arithmetic number, because the mean of its divisors is an integer number (62424).

2²⁴⁵⁹⁵⁷ is an apocalyptic number.

It is an amenable number.

245957 is a deficient number, since it is larger than the sum of its proper divisors (3739).

245957 is an equidigital number, since it uses as much as digits as its factorization.

245957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3738.

The product of its digits is 12600, while the sum is 32.

The square root of 245957 is about 495.9405206272. The cubic root of 245957 is about 62.6546145275.

The spelling of 245957 in words is "two hundred forty-five thousand, nine hundred fifty-seven".