245057 has 8 divisors (see below), whose sum is σ = 258720. Its totient is φ = 231840.

The previous prime is 245039. The next prime is 245071. The reversal of 245057 is 750542.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 245057 - 2¹⁰ = 244033 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12 and base 14.

It is not an unprimeable number, because it can be changed into a prime (245087) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1694 + ... + 1832.

It is an arithmetic number, because the mean of its divisors is an integer number (32340).

2²⁴⁵⁰⁵⁷ is an apocalyptic number.

It is an amenable number.

245057 is a deficient number, since it is larger than the sum of its proper divisors (13663).

245057 is a wasteful number, since it uses less digits than its factorization.

245057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 245057 is about 495.0323221770. The cubic root of 245057 is about 62.5780996997.

Adding to 245057 its reverse (750542), we get a palindrome (995599).

The spelling of 245057 in words is "two hundred forty-five thousand, fifty-seven".