311434 has 4 divisors (see below), whose sum is σ = 467154. Its totient is φ = 155716.

The previous prime is 311419. The next prime is 311447. The reversal of 311434 is 434113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 305809 + 5625 = 553^2 + 75^2 .

It is a super-2 number, since 2×311434² = 193982272712, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77857 + ... + 77860.

2³¹¹⁴³⁴ is an apocalyptic number.

311434 is a deficient number, since it is larger than the sum of its proper divisors (155720).

311434 is a wasteful number, since it uses less digits than its factorization.

311434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155719.

The product of its digits is 144, while the sum is 16.

The square root of 311434 is about 558.0627204894. The cubic root of 311434 is about 67.7831906653.

Adding to 311434 its reverse (434113), we get a palindrome (745547).

The spelling of 311434 in words is "three hundred eleven thousand, four hundred thirty-four".