312132413 has 4 divisors (see below), whose sum is σ = 312167868. Its totient is φ = 312096960.

The previous prime is 312132409. The next prime is 312132419. The reversal of 312132413 is 314231213.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 275493604 + 36638809 = 16598^2 + 6053^2 .

It is a cyclic number.

It is not a de Polignac number, because 312132413 - 2² = 312132409 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312132419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6683 + ... + 25863.

It is an arithmetic number, because the mean of its divisors is an integer number (78041967).

Almost surely, 2^312132413 is an apocalyptic number.

It is an amenable number.

312132413 is a deficient number, since it is larger than the sum of its proper divisors (35455).

312132413 is a wasteful number, since it uses less digits than its factorization.

312132413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35454.

The product of its digits is 432, while the sum is 20.

The square root of 312132413 is about 17667.2695400280. The cubic root of 312132413 is about 678.3382238531.

Adding to 312132413 its reverse (314231213), we get a palindrome (626363626).

The spelling of 312132413 in words is "three hundred twelve million, one hundred thirty-two thousand, four hundred thirteen".