311475 has 12 divisors (see below), whose sum is σ = 515096. Its totient is φ = 166080.

The previous prime is 311473. The next prime is 311533. The reversal of 311475 is 574113.

It is not a de Polignac number, because 311475 - 2¹ = 311473 is a prime.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 311475.

It is not an unprimeable number, because it can be changed into a prime (311473) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2002 + ... + 2151.

2³¹¹⁴⁷⁵ is an apocalyptic number.

311475 is a deficient number, since it is larger than the sum of its proper divisors (203621).

311475 is a wasteful number, since it uses less digits than its factorization.

311475 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4166 (or 4161 counting only the distinct ones).

The product of its digits is 420, while the sum is 21.

The square root of 311475 is about 558.0994535027. The cubic root of 311475 is about 67.7861650663.

Adding to 311475 its reverse (574113), we get a palindrome (885588).

The spelling of 311475 in words is "three hundred eleven thousand, four hundred seventy-five".