1139983889 has 8 divisors (see below), whose sum is σ = 1254625632. Its totient is φ = 1027176640.

The previous prime is 1139983843. The next prime is 1139983903. The reversal of 1139983889 is 9883899311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1139983889 - 2²⁴ = 1123206673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139983829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 457319 + ... + 459804.

It is an arithmetic number, because the mean of its divisors is an integer number (156828204).

Almost surely, 2^1139983889 is an apocalyptic number.

It is an amenable number.

1139983889 is a deficient number, since it is larger than the sum of its proper divisors (114641743).

1139983889 is a wasteful number, since it uses less digits than its factorization.

1139983889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917247.

The product of its digits is 3359232, while the sum is 59.

The square root of 1139983889 is about 33763.6474481061. The cubic root of 1139983889 is about 1044.6390056710.

The spelling of 1139983889 in words is "one billion, one hundred thirty-nine million, nine hundred eighty-three thousand, eight hundred eighty-nine".