245485 has 8 divisors (see below), whose sum is σ = 304920. Its totient is φ = 189504.

The previous prime is 245477. The next prime is 245501. The reversal of 245485 is 584542.

It can be written as a sum of positive squares in 4 ways, for example, as 17956 + 227529 = 134^2 + 477^2 .

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 245485 - 2³ = 245477 is a prime.

245485 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 702 + ... + 991.

It is an arithmetic number, because the mean of its divisors is an integer number (38115).

2²⁴⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

245485 is a deficient number, since it is larger than the sum of its proper divisors (59435).

245485 is a wasteful number, since it uses less digits than its factorization.

245485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1727.

The product of its digits is 6400, while the sum is 28.

The square root of 245485 is about 495.4644285920. The cubic root of 245485 is about 62.6145100710.

The spelling of 245485 in words is "two hundred forty-five thousand, four hundred eighty-five".