312133413 has 16 divisors (see below), whose sum is σ = 445616640. Its totient is φ = 193645056.

The previous prime is 312133411. The next prime is 312133417. The reversal of 312133413 is 314331213.

It is not a de Polignac number, because 312133413 - 2¹ = 312133411 is a prime.

It is a super-2 number, since 2×312133413² = 194854535022057138, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 312133413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312133411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29845 + ... + 38922.

It is an arithmetic number, because the mean of its divisors is an integer number (27851040).

Almost surely, 2^312133413 is an apocalyptic number.

It is an amenable number.

312133413 is a deficient number, since it is larger than the sum of its proper divisors (133483227).

312133413 is a wasteful number, since it uses less digits than its factorization.

312133413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68876.

The product of its digits is 648, while the sum is 21.

The square root of 312133413 is about 17667.2978409263. The cubic root of 312133413 is about 678.3389482652.

Adding to 312133413 its reverse (314331213), we get a palindrome (626464626).

The spelling of 312133413 in words is "three hundred twelve million, one hundred thirty-three thousand, four hundred thirteen".