312345412 has 12 divisors (see below), whose sum is σ = 551713680. Its totient is φ = 154712936.

The previous prime is 312345361. The next prime is 312345413. The reversal of 312345412 is 214543213.

312345412 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (312345413) 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, 364462 + ... + 365317.

It is an arithmetic number, because the mean of its divisors is an integer number (45976140).

Almost surely, 2^312345412 is an apocalyptic number.

It is an amenable number.

312345412 is a deficient number, since it is larger than the sum of its proper divisors (239368268).

312345412 is a wasteful number, since it uses less digits than its factorization.

312345412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729890 (or 729888 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 312345412 is about 17673.2965798687. The cubic root of 312345412 is about 678.4924879883.

Adding to 312345412 its reverse (214543213), we get a palindrome (526888625).

The spelling of 312345412 in words is "three hundred twelve million, three hundred forty-five thousand, four hundred twelve".