312612612 has 24 divisors (see below), whose sum is σ = 785539776. Its totient is φ = 96188448.

The previous prime is 312612607. The next prime is 312612631. The reversal of 312612612 is 216216213.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001808 + ... + 1002119.

It is an arithmetic number, because the mean of its divisors is an integer number (32730824).

Almost surely, 2^312612612 is an apocalyptic number.

It is an amenable number.

312612612 is an abundant number, since it is smaller than the sum of its proper divisors (472927164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312612612 is a wasteful number, since it uses less digits than its factorization.

312612612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003947 (or 2003945 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 312612612 is about 17680.8543911204. The cubic root of 312612612 is about 678.6859079584.

Adding to 312612612 its reverse (216216213), we get a palindrome (528828825).

The spelling of 312612612 in words is "three hundred twelve million, six hundred twelve thousand, six hundred twelve".