312755 has 8 divisors (see below), whose sum is σ = 381024. Its totient is φ = 246400.

The previous prime is 312743. The next prime is 312757. The reversal of 312755 is 557213.

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

It is a de Polignac number, because none of the positive numbers 2^k-312755 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 312755.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 312755.

It is not an unprimeable number, because it can be changed into a prime (312757) 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, 86 + ... + 795.

It is an arithmetic number, because the mean of its divisors is an integer number (47628).

2³¹²⁷⁵⁵ is an apocalyptic number.

312755 is a deficient number, since it is larger than the sum of its proper divisors (68269).

312755 is an equidigital number, since it uses as much as digits as its factorization.

312755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 957.

The product of its digits is 1050, while the sum is 23.

The square root of 312755 is about 559.2450267995. The cubic root of 312755 is about 67.8788934364.

Adding to 312755 its reverse (557213), we get a palindrome (869968).

The spelling of 312755 in words is "three hundred twelve thousand, seven hundred fifty-five".