263245 has 16 divisors (see below), whose sum is σ = 354240. Its totient is φ = 186624.

The previous prime is 263239. The next prime is 263257. The reversal of 263245 is 542362.

It is a happy number.

It is a 6-Lehmer number, since φ(263245) divides (263245-1)⁶.

It is a cyclic number.

It is not a de Polignac number, because 263245 - 2⁵ = 263213 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1534 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (22140).

2²⁶³²⁴⁵ is an apocalyptic number.

It is an amenable number.

263245 is a deficient number, since it is larger than the sum of its proper divisors (90995).

263245 is a wasteful number, since it uses less digits than its factorization.

263245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204.

The product of its digits is 1440, while the sum is 22.

The square root of 263245 is about 513.0740687269. The cubic root of 263245 is about 64.0894744623.

The spelling of 263245 in words is "two hundred sixty-three thousand, two hundred forty-five".