263315 has 8 divisors (see below), whose sum is σ = 340368. Its totient is φ = 194400.

The previous prime is 263303. The next prime is 263323. The reversal of 263315 is 513362.

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

It is not a de Polignac number, because 263315 - 2¹² = 259219 is a prime.

It is a Duffinian 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, 1961 + ... + 2090.

It is an arithmetic number, because the mean of its divisors is an integer number (42546).

2²⁶³³¹⁵ is an apocalyptic number.

263315 is a deficient number, since it is larger than the sum of its proper divisors (77053).

263315 is a wasteful number, since it uses less digits than its factorization.

263315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4069.

The product of its digits is 540, while the sum is 20.

The square root of 263315 is about 513.1422804642. The cubic root of 263315 is about 64.0951546786.

Adding to 263315 its reverse (513362), we get a palindrome (776677).

Subtracting 263315 from its reverse (513362), we obtain a cube (250047 = 63³).

The spelling of 263315 in words is "two hundred sixty-three thousand, three hundred fifteen".