1139289647 has 12 divisors (see below), whose sum is σ = 1208187576. Its totient is φ = 1074139920.

The previous prime is 1139289637. The next prime is 1139289661. The reversal of 1139289647 is 7469829311.

It is not a de Polignac number, because 1139289647 - 2⁴ = 1139289631 is a prime.

It is a super-2 number, since 2×1139289647² = 2595961799522769218, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1139289595 and 1139289604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139289637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68693 + ... + 83649.

It is an arithmetic number, because the mean of its divisors is an integer number (100682298).

Almost surely, 2^1139289647 is an apocalyptic number.

1139289647 is a deficient number, since it is larger than the sum of its proper divisors (68897929).

1139289647 is a wasteful number, since it uses less digits than its factorization.

1139289647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15206 (or 15187 counting only the distinct ones).

The product of its digits is 653184, while the sum is 50.

The square root of 1139289647 is about 33753.3649729920. The cubic root of 1139289647 is about 1044.4269033919.

The spelling of 1139289647 in words is "one billion, one hundred thirty-nine million, two hundred eighty-nine thousand, six hundred forty-seven".