1139139072 has 160 divisors (see below), whose sum is σ = 3550219200. Its totient is φ = 359645184.

The previous prime is 1139139049. The next prime is 1139139103. The reversal of 1139139072 is 2709319311.

It is a happy number.

1139139072 is a `hidden beast` number, since 113 + 91 + 390 + 72 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260488 + ... + 264824.

It is an arithmetic number, because the mean of its divisors is an integer number (22188870).

Almost surely, 2^1139139072 is an apocalyptic number.

1139139072 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 1139139072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1775109600).

1139139072 is an abundant number, since it is smaller than the sum of its proper divisors (2411080128).

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

1139139072 is an equidigital number, since it uses as much as digits as its factorization.

1139139072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4383 (or 4361 counting only the distinct ones).

The product of its (nonzero) digits is 10206, while the sum is 36.

The square root of 1139139072 is about 33751.1343809360. The cubic root of 1139139072 is about 1044.3808888979.

The spelling of 1139139072 in words is "one billion, one hundred thirty-nine million, one hundred thirty-nine thousand, seventy-two".