1311747692 has 12 divisors (see below), whose sum is σ = 2297174880. Its totient is φ = 655412016.

The previous prime is 1311747683. The next prime is 1311747709. The reversal of 1311747692 is 2967471131.

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, 109028 + ... + 120459.

It is an arithmetic number, because the mean of its divisors is an integer number (191431240).

Almost surely, 2^1311747692 is an apocalyptic number.

It is an amenable number.

1311747692 is a deficient number, since it is larger than the sum of its proper divisors (985427188).

1311747692 is a wasteful number, since it uses less digits than its factorization.

1311747692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230920 (or 230918 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 1311747692 is about 36218.0575404038. The cubic root of 1311747692 is about 1094.6705546870.

The spelling of 1311747692 in words is "one billion, three hundred eleven million, seven hundred forty-seven thousand, six hundred ninety-two".