312263 has 8 divisors (see below), whose sum is σ = 368640. Its totient is φ = 258840.

The previous prime is 312253. The next prime is 312269. The reversal of 312263 is 362213.

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 312263 - 2⁶ = 312199 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312263.

It is not an unprimeable number, because it can be changed into a prime (312269) 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, 503 + ... + 936.

It is an arithmetic number, because the mean of its divisors is an integer number (46080).

2³¹²²⁶³ is an apocalyptic number.

312263 is a deficient number, since it is larger than the sum of its proper divisors (56377).

312263 is a wasteful number, since it uses less digits than its factorization.

312263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1477.

The product of its digits is 216, while the sum is 17.

The square root of 312263 is about 558.8049749242. The cubic root of 312263 is about 67.8432809569.

Adding to 312263 its reverse (362213), we get a palindrome (674476).

It can be divided in two parts, 312 and 263, that added together give a palindrome (575).

The spelling of 312263 in words is "three hundred twelve thousand, two hundred sixty-three".