1139109912 has 32 divisors (see below), whose sum is σ = 3164194800. Its totient is φ = 379703232.

The previous prime is 1139109817. The next prime is 1139109941. The reversal of 1139109912 is 2199019311.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636613 + ... + 2637044.

Almost surely, 2^1139109912 is an apocalyptic number.

1139109912 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1139109912 is an abundant number, since it is smaller than the sum of its proper divisors (2025084888).

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

1139109912 is a wasteful number, since it uses less digits than its factorization.

1139109912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5273672 (or 5273662 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 36.

The square root of 1139109912 is about 33750.7023926910. The cubic root of 1139109912 is about 1044.3719773707.

The spelling of 1139109912 in words is "one billion, one hundred thirty-nine million, one hundred nine thousand, nine hundred twelve".