311434145 has 16 divisors (see below), whose sum is σ = 425423232. Its totient is φ = 216648960.

The previous prime is 311434129. The next prime is 311434163. The reversal of 311434145 is 541434113.

It is a happy number.

It is not a de Polignac number, because 311434145 - 2⁴ = 311434129 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121832 + ... + 124361.

It is an arithmetic number, because the mean of its divisors is an integer number (26588952).

Almost surely, 2^311434145 is an apocalyptic number.

It is an amenable number.

311434145 is a deficient number, since it is larger than the sum of its proper divisors (113989087).

311434145 is a wasteful number, since it uses less digits than its factorization.

311434145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246232.

The product of its digits is 2880, while the sum is 26.

The square root of 311434145 is about 17647.4968479952. The cubic root of 311434145 is about 677.8320118496.

Adding to 311434145 its reverse (541434113), we get a palindrome (852868258).

The spelling of 311434145 in words is "three hundred eleven million, four hundred thirty-four thousand, one hundred forty-five".