312612443 has 8 divisors (see below), whose sum is σ = 367265136. Its totient is φ = 262332000.

The previous prime is 312612409. The next prime is 312612449. The reversal of 312612443 is 344216213.

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 312612443 - 2⁶ = 312612379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312612449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1092908 + ... + 1093193.

It is an arithmetic number, because the mean of its divisors is an integer number (45908142).

Almost surely, 2^312612443 is an apocalyptic number.

312612443 is a deficient number, since it is larger than the sum of its proper divisors (54652693).

312612443 is a wasteful number, since it uses less digits than its factorization.

312612443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186125.

The product of its digits is 3456, while the sum is 26.

The square root of 312612443 is about 17680.8496119389. The cubic root of 312612443 is about 678.6857856580.

Adding to 312612443 its reverse (344216213), we get a palindrome (656828656).

The spelling of 312612443 in words is "three hundred twelve million, six hundred twelve thousand, four hundred forty-three".