1312043494 has 8 divisors (see below), whose sum is σ = 1968268680. Its totient is φ = 655953936.

The previous prime is 1312043431. The next prime is 1312043503. The reversal of 1312043494 is 4943402131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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, 4684 + ... + 51439.

It is an arithmetic number, because the mean of its divisors is an integer number (246033585).

Almost surely, 2^1312043494 is an apocalyptic number.

1312043494 is a deficient number, since it is larger than the sum of its proper divisors (656225186).

1312043494 is a wasteful number, since it uses less digits than its factorization.

1312043494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67814.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1312043494 is about 36222.1409361733. The cubic root of 1312043494 is about 1094.7528320449.

The spelling of 1312043494 in words is "one billion, three hundred twelve million, forty-three thousand, four hundred ninety-four".