1312297794 has 16 divisors (see below), whose sum is σ = 2916217440. Its totient is φ = 437432580.

The previous prime is 1312297793. The next prime is 1312297801. The reversal of 1312297794 is 4977922131.

It is not an unprimeable number, because it can be changed into a prime (1312297793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12150852 + ... + 12150959.

It is an arithmetic number, because the mean of its divisors is an integer number (182263590).

Almost surely, 2^1312297794 is an apocalyptic number.

1312297794 is an abundant number, since it is smaller than the sum of its proper divisors (1603919646).

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

1312297794 is a wasteful number, since it uses less digits than its factorization.

1312297794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24301822 (or 24301816 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 1312297794 is about 36225.6510500502. The cubic root of 1312297794 is about 1094.8235557321.

The spelling of 1312297794 in words is "one billion, three hundred twelve million, two hundred ninety-seven thousand, seven hundred ninety-four".