312147056 has 60 divisors (see below), whose sum is σ = 658975680. Its totient is φ = 143170560.

The previous prime is 312147041. The next prime is 312147061. The reversal of 312147056 is 650741213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 651425 + ... + 651903.

It is an arithmetic number, because the mean of its divisors is an integer number (10982928).

Almost surely, 2^312147056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312147056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329487840).

312147056 is an abundant number, since it is smaller than the sum of its proper divisors (346828624).

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

312147056 is a wasteful number, since it uses less digits than its factorization.

312147056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 754 (or 735 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 312147056 is about 17667.6839455544. The cubic root of 312147056 is about 678.3488312651.

Adding to 312147056 its reverse (650741213), we get a palindrome (962888269).

The spelling of 312147056 in words is "three hundred twelve million, one hundred forty-seven thousand, fifty-six".