1312746244 has 6 divisors (see below), whose sum is σ = 2297305934. Its totient is φ = 656373120.

The previous prime is 1312746191. The next prime is 1312746263. The reversal of 1312746244 is 4426472131.

It can be written as a sum of positive squares in only one way, i.e., 765186244 + 547560000 = 27662^2 + 23400^2 .

It is a super-2 number, since 2×1312746244² = 3446605402272215072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164093277 + ... + 164093284.

Almost surely, 2^1312746244 is an apocalyptic number.

It is an amenable number.

1312746244 is a deficient number, since it is larger than the sum of its proper divisors (984559690).

1312746244 is a wasteful number, since it uses less digits than its factorization.

1312746244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328186565 (or 328186563 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 1312746244 is about 36231.8401961590. The cubic root of 1312746244 is about 1094.9482524561.

The spelling of 1312746244 in words is "one billion, three hundred twelve million, seven hundred forty-six thousand, two hundred forty-four".