311376481 has 8 divisors (see below), whose sum is σ = 335489000. Its totient is φ = 287286912.

The previous prime is 311376479. The next prime is 311376491. The reversal of 311376481 is 184673113.

It can be written as a sum of positive squares in 4 ways, for example, as 25090081 + 286286400 = 5009^2 + 16920^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 311376481 - 2¹ = 311376479 is a prime.

It is a super-2 number, since 2×311376481² = 193910625839886722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311376491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31381 + ... + 40093.

It is an arithmetic number, because the mean of its divisors is an integer number (41936125).

Almost surely, 2^311376481 is an apocalyptic number.

It is an amenable number.

311376481 is a deficient number, since it is larger than the sum of its proper divisors (24112519).

311376481 is a wasteful number, since it uses less digits than its factorization.

311376481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11475.

The product of its digits is 12096, while the sum is 34.

The square root of 311376481 is about 17645.8629995815. The cubic root of 311376481 is about 677.7901743072.

The spelling of 311376481 in words is "three hundred eleven million, three hundred seventy-six thousand, four hundred eighty-one".