311456 has 12 divisors (see below), whose sum is σ = 613242. Its totient is φ = 155712.

The previous prime is 311453. The next prime is 311473. The reversal of 311456 is 654113.

311456 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 211600 + 99856 = 460^2 + 316^2 .

It is not an unprimeable number, because it can be changed into a prime (311453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4835 + ... + 4898.

2³¹¹⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

311456 is a deficient number, since it is larger than the sum of its proper divisors (301786).

311456 is an equidigital number, since it uses as much as digits as its factorization.

311456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9743 (or 9735 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 311456 is about 558.0824311874. The cubic root of 311456 is about 67.7847867178.

Adding to 311456 its reverse (654113), we get a palindrome (965569).

It can be divided in two parts, 311 and 456, that added together give a palindrome (767).

The spelling of 311456 in words is "three hundred eleven thousand, four hundred fifty-six".