1139319812 has 24 divisors (see below), whose sum is σ = 2147615232. Its totient is φ = 527313600.

The previous prime is 1139319761. The next prime is 1139319823. The reversal of 1139319812 is 2189139311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196889 + ... + 202592.

It is an arithmetic number, because the mean of its divisors is an integer number (89483968).

Almost surely, 2^1139319812 is an apocalyptic number.

It is an amenable number.

1139319812 is a deficient number, since it is larger than the sum of its proper divisors (1008295420).

1139319812 is a wasteful number, since it uses less digits than its factorization.

1139319812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399539 (or 399537 counting only the distinct ones).

The product of its digits is 11664, while the sum is 38.

The square root of 1139319812 is about 33753.8118143714. The cubic root of 1139319812 is about 1044.4361210828.

The spelling of 1139319812 in words is "one billion, one hundred thirty-nine million, three hundred nineteen thousand, eight hundred twelve".