1139611807 has 8 divisors (see below), whose sum is σ = 1144011600. Its totient is φ = 1135221504.

The previous prime is 1139611799. The next prime is 1139611861. The reversal of 1139611807 is 7081169311.

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 1139611807 - 2³ = 1139611799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139611007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 313263 + ... + 316879.

It is an arithmetic number, because the mean of its divisors is an integer number (143001450).

Almost surely, 2^1139611807 is an apocalyptic number.

1139611807 is a deficient number, since it is larger than the sum of its proper divisors (4399793).

1139611807 is an equidigital number, since it uses as much as digits as its factorization.

1139611807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4745.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 1139611807 is about 33758.1369006052. The cubic root of 1139611807 is about 1044.5253392497.

It can be divided in two parts, 113 and 9611807, that added together give a triangular number (9611920 = T₄₃₈₄).

The spelling of 1139611807 in words is "one billion, one hundred thirty-nine million, six hundred eleven thousand, eight hundred seven".