1331126492 has 12 divisors (see below), whose sum is σ = 2335169760. Its totient is φ = 663935136.

The previous prime is 1331126483. The next prime is 1331126509. The reversal of 1331126492 is 2946211331.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405188 + ... + 408459.

It is an arithmetic number, because the mean of its divisors is an integer number (194597480).

Almost surely, 2^1331126492 is an apocalyptic number.

It is an amenable number.

1331126492 is a deficient number, since it is larger than the sum of its proper divisors (1004043268).

1331126492 is a wasteful number, since it uses less digits than its factorization.

1331126492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814060 (or 814058 counting only the distinct ones).

The product of its digits is 7776, while the sum is 32.

The square root of 1331126492 is about 36484.6062333143. The cubic root of 1331126492 is about 1100.0348451772.

The spelling of 1331126492 in words is "one billion, three hundred thirty-one million, one hundred twenty-six thousand, four hundred ninety-two".