1139316823 has 4 divisors (see below), whose sum is σ = 1178603640. Its totient is φ = 1100030008.

The previous prime is 1139316821. The next prime is 1139316833. The reversal of 1139316823 is 3286139311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1139316823 - 2¹ = 1139316821 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 (1139316821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19643365 + ... + 19643422.

It is an arithmetic number, because the mean of its divisors is an integer number (294650910).

Almost surely, 2^1139316823 is an apocalyptic number.

1139316823 is a deficient number, since it is larger than the sum of its proper divisors (39286817).

1139316823 is an equidigital number, since it uses as much as digits as its factorization.

1139316823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39286816.

The product of its digits is 23328, while the sum is 37.

The square root of 1139316823 is about 33753.7675378616. The cubic root of 1139316823 is about 1044.4352077243.

The spelling of 1139316823 in words is "one billion, one hundred thirty-nine million, three hundred sixteen thousand, eight hundred twenty-three".