1139927769 has 16 divisors (see below), whose sum is σ = 1689385600. Its totient is φ = 759680208.

The previous prime is 1139927759. The next prime is 1139927821. The reversal of 1139927769 is 9677299311.

It is a happy number.

It is not a de Polignac number, because 1139927769 - 2⁷ = 1139927641 is a prime.

It is a super-2 number, since 2×1139927769² = 2598870637074634722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139927729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94452 + ... + 105834.

It is an arithmetic number, because the mean of its divisors is an integer number (105586600).

Almost surely, 2^1139927769 is an apocalyptic number.

It is an amenable number.

1139927769 is a deficient number, since it is larger than the sum of its proper divisors (549457831).

1139927769 is a wasteful number, since it uses less digits than its factorization.

1139927769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15101 (or 15095 counting only the distinct ones).

The product of its digits is 1285956, while the sum is 54.

The square root of 1139927769 is about 33762.8163665296. The cubic root of 1139927769 is about 1044.6218632933.

The spelling of 1139927769 in words is "one billion, one hundred thirty-nine million, nine hundred twenty-seven thousand, seven hundred sixty-nine".