311671142 has 16 divisors (see below), whose sum is σ = 473845680. Its totient is φ = 153728352.

The previous prime is 311671133. The next prime is 311671169. The reversal of 311671142 is 241176113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183248 + ... + 184940.

It is an arithmetic number, because the mean of its divisors is an integer number (29615355).

Almost surely, 2^311671142 is an apocalyptic number.

311671142 is a deficient number, since it is larger than the sum of its proper divisors (162174538).

311671142 is a wasteful number, since it uses less digits than its factorization.

311671142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887.

The product of its digits is 1008, while the sum is 26.

The square root of 311671142 is about 17654.2103193544. The cubic root of 311671142 is about 678.0039084595.

The spelling of 311671142 in words is "three hundred eleven million, six hundred seventy-one thousand, one hundred forty-two".