311454140 has 12 divisors (see below), whose sum is σ = 654053736. Its totient is φ = 124581648.

The previous prime is 311454139. The next prime is 311454167. The reversal of 311454140 is 41454113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7786334 + ... + 7786373.

It is an arithmetic number, because the mean of its divisors is an integer number (54504478).

Almost surely, 2^311454140 is an apocalyptic number.

It is an amenable number.

311454140 is an abundant number, since it is smaller than the sum of its proper divisors (342599596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311454140 is a wasteful number, since it uses less digits than its factorization.

311454140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15572716 (or 15572714 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 311454140 is about 17648.0633498410. The cubic root of 311454140 is about 677.8465178174.

The spelling of 311454140 in words is "three hundred eleven million, four hundred fifty-four thousand, one hundred forty".