311055385 has 8 divisors (see below), whose sum is σ = 376206336. Its totient is φ = 246884400.

The previous prime is 311055383. The next prime is 311055389. The reversal of 311055385 is 583550113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311055385 - 2¹ = 311055383 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311055383) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 244291 + ... + 245560.

It is an arithmetic number, because the mean of its divisors is an integer number (47025792).

Almost surely, 2^311055385 is an apocalyptic number.

It is an amenable number.

311055385 is a deficient number, since it is larger than the sum of its proper divisors (65150951).

311055385 is a wasteful number, since it uses less digits than its factorization.

311055385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489983.

The product of its (nonzero) digits is 9000, while the sum is 31.

The square root of 311055385 is about 17636.7623162529. The cubic root of 311055385 is about 677.5571117825.

The spelling of 311055385 in words is "three hundred eleven million, fifty-five thousand, three hundred eighty-five".