263315423 has 8 divisors (see below), whose sum is σ = 301093920. Its totient is φ = 225577440.

The previous prime is 263315419. The next prime is 263315441. The reversal of 263315423 is 324513362.

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 263315423 - 2² = 263315419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263315443) 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, 5393 + ... + 23573.

It is an arithmetic number, because the mean of its divisors is an integer number (37636740).

Almost surely, 2^263315423 is an apocalyptic number.

263315423 is a deficient number, since it is larger than the sum of its proper divisors (37778497).

263315423 is a wasteful number, since it uses less digits than its factorization.

263315423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20257.

The product of its digits is 12960, while the sum is 29.

The square root of 263315423 is about 16226.9967338383. The cubic root of 263315423 is about 640.9518900032.

Adding to 263315423 its reverse (324513362), we get a palindrome (587828785).

The spelling of 263315423 in words is "two hundred sixty-three million, three hundred fifteen thousand, four hundred twenty-three".