311349 has 8 divisors (see below), whose sum is σ = 421600. Its totient is φ = 204336.

The previous prime is 311347. The next prime is 311359. The reversal of 311349 is 943113.

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

It is not a de Polignac number, because 311349 - 2¹ = 311347 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 (311341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 574 + ... + 975.

It is an arithmetic number, because the mean of its divisors is an integer number (52700).

2³¹¹³⁴⁹ is an apocalyptic number.

It is an amenable number.

311349 is a deficient number, since it is larger than the sum of its proper divisors (110251).

311349 is a wasteful number, since it uses less digits than its factorization.

311349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1619.

The product of its digits is 324, while the sum is 21.

The square root of 311349 is about 557.9865589779. The cubic root of 311349 is about 67.7770233923. Note that the first 3 decimals are identical.

The spelling of 311349 in words is "three hundred eleven thousand, three hundred forty-nine".