1307056812 has 12 divisors (see below), whose sum is σ = 3049799256. Its totient is φ = 435685600.

The previous prime is 1307056801. The next prime is 1307056843. The reversal of 1307056812 is 2186507031.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54460689 + ... + 54460712.

It is an arithmetic number, because the mean of its divisors is an integer number (254149938).

Almost surely, 2^1307056812 is an apocalyptic number.

1307056812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1307056812 is an abundant number, since it is smaller than the sum of its proper divisors (1742742444).

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

1307056812 is a wasteful number, since it uses less digits than its factorization.

1307056812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108921408 (or 108921406 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 33.

The square root of 1307056812 is about 36153.2406846191. The cubic root of 1307056812 is about 1093.3641293213.

The spelling of 1307056812 in words is "one billion, three hundred seven million, fifty-six thousand, eight hundred twelve".