1139585112 has 160 divisors (see below), whose sum is σ = 3277454400. Its totient is φ = 369847296.

The previous prime is 1139585009. The next prime is 1139585137. The reversal of 1139585112 is 2115859311.

1139585112 is a `hidden beast` number, since 1 + 139 + 5 + 8 + 511 + 2 = 666.

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 polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5784598 + ... + 5784794.

It is an arithmetic number, because the mean of its divisors is an integer number (20484090).

Almost surely, 2^1139585112 is an apocalyptic number.

1139585112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139585112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1638727200).

1139585112 is an abundant number, since it is smaller than the sum of its proper divisors (2137869288).

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

1139585112 is a wasteful number, since it uses less digits than its factorization.

1139585112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407 (or 394 counting only the distinct ones).

The product of its digits is 10800, while the sum is 36.

The square root of 1139585112 is about 33757.7415121332. The cubic root of 1139585112 is about 1044.5171833082.

The spelling of 1139585112 in words is "one billion, one hundred thirty-nine million, five hundred eighty-five thousand, one hundred twelve".