311145476 has 12 divisors (see below), whose sum is σ = 545003340. Its totient is φ = 155430240.

The previous prime is 311145391. The next prime is 311145479. The reversal of 311145476 is 674541113.

It can be written as a sum of positive squares in 2 ways, for example, as 88360000 + 222785476 = 9400^2 + 14926^2 .

It is not an unprimeable number, because it can be changed into a prime (311145479) 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 3 ways as a sum of consecutive naturals, for example, 30635 + ... + 39506.

It is an arithmetic number, because the mean of its divisors is an integer number (45416945).

Almost surely, 2^311145476 is an apocalyptic number.

It is an amenable number.

311145476 is a deficient number, since it is larger than the sum of its proper divisors (233857864).

311145476 is a wasteful number, since it uses less digits than its factorization.

311145476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71254 (or 71252 counting only the distinct ones).

The product of its digits is 10080, while the sum is 32.

The square root of 311145476 is about 17639.3161998985. The cubic root of 311145476 is about 677.6225191113.

Adding to 311145476 its reverse (674541113), we get a palindrome (985686589).

The spelling of 311145476 in words is "three hundred eleven million, one hundred forty-five thousand, four hundred seventy-six".