1312255072 has 12 divisors (see below), whose sum is σ = 2583502236. Its totient is φ = 656127520.

The previous prime is 1312255067. The next prime is 1312255093. The reversal of 1312255072 is 2705522131.

It is a self number, because there is not a number n which added to its sum of digits gives 1312255072.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20503954 + ... + 20504017.

It is an arithmetic number, because the mean of its divisors is an integer number (215291853).

Almost surely, 2^1312255072 is an apocalyptic number.

It is an amenable number.

1312255072 is a deficient number, since it is larger than the sum of its proper divisors (1271247164).

1312255072 is an equidigital number, since it uses as much as digits as its factorization.

1312255072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41007981 (or 41007973 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 1312255072 is about 36225.0613802102. The cubic root of 1312255072 is about 1094.8116749025.

The spelling of 1312255072 in words is "one billion, three hundred twelve million, two hundred fifty-five thousand, seventy-two".