245835 has 20 divisors (see below), whose sum is σ = 441408. Its totient is φ = 130896.

The previous prime is 245821. The next prime is 245849. The reversal of 245835 is 538542.

It is an interprime number because it is at equal distance from previous prime (245821) and next prime (245849).

It is not a de Polignac number, because 245835 - 2⁶ = 245771 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a d-powerful number, because it can be written as 2¹⁷ + 4² + 8⁵ + 5⁵ + 3⁶ + 5⁷ .

245835 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 245799 and 245808.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 102 + ... + 708.

2²⁴⁵⁸³⁵ is an apocalyptic number.

245835 is the 405-th pentagonal number.

245835 is a deficient number, since it is larger than the sum of its proper divisors (195573).

245835 is an equidigital number, since it uses as much as digits as its factorization.

245835 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624 (or 615 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 245835 is about 495.8175067502. The cubic root of 245835 is about 62.6442534655.

The spelling of 245835 in words is "two hundred forty-five thousand, eight hundred thirty-five".