311348 has 12 divisors (see below), whose sum is σ = 548772. Its totient is φ = 154560.

The previous prime is 311347. The next prime is 311359. The reversal of 311348 is 843113.

It is a happy number.

311348 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 2 ways, for example, as 128164 + 183184 = 358^2 + 428^2 .

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 311348.

It is not an unprimeable number, because it can be changed into a prime (311341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 968 + ... + 1248.

It is an arithmetic number, because the mean of its divisors is an integer number (45731).

2³¹¹³⁴⁸ is an apocalyptic number.

It is an amenable number.

311348 is a deficient number, since it is larger than the sum of its proper divisors (237424).

311348 is a wasteful number, since it uses less digits than its factorization.

311348 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 560 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 311348 is about 557.9856628983. The cubic root of 311348 is about 67.7769508295.

The spelling of 311348 in words is "three hundred eleven thousand, three hundred forty-eight".