1312075396 has 12 divisors (see below), whose sum is σ = 2297142540. Its totient is φ = 655748960.

The previous prime is 1312075393. The next prime is 1312075397. The reversal of 1312075396 is 6935702131.

It can be written as a sum of positive squares in 2 ways, for example, as 1051704900 + 260370496 = 32430^2 + 16136^2 .

It is not an unprimeable number, because it can be changed into a prime (1312075393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61795 + ... + 80266.

It is an arithmetic number, because the mean of its divisors is an integer number (191428545).

Almost surely, 2^1312075396 is an apocalyptic number.

It is an amenable number.

1312075396 is a deficient number, since it is larger than the sum of its proper divisors (985067144).

1312075396 is a wasteful number, since it uses less digits than its factorization.

1312075396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144374 (or 144372 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 1312075396 is about 36222.5812995154. The cubic root of 1312075396 is about 1094.7617048508.

The spelling of 1312075396 in words is "one billion, three hundred twelve million, seventy-five thousand, three hundred ninety-six".