311494 has 4 divisors (see below), whose sum is σ = 467244. Its totient is φ = 155746.

The previous prime is 311473. The next prime is 311533. The reversal of 311494 is 494113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 494113 = 43 ⋅11491.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 77872 + ... + 77875.

It is an arithmetic number, because the mean of its divisors is an integer number (116811).

2³¹¹⁴⁹⁴ is an apocalyptic number.

311494 is a deficient number, since it is larger than the sum of its proper divisors (155750).

311494 is a wasteful number, since it uses less digits than its factorization.

311494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155749.

The product of its digits is 432, while the sum is 22.

The square root of 311494 is about 558.1164752988. The cubic root of 311494 is about 67.7875433588.

The spelling of 311494 in words is "three hundred eleven thousand, four hundred ninety-four".