1139476819 has 4 divisors (see below), whose sum is σ = 1227128896. Its totient is φ = 1051824744.

The previous prime is 1139476801. The next prime is 1139476829. The reversal of 1139476819 is 9186749311.

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 1139476819 - 2¹¹ = 1139474771 is a prime.

It is a super-2 number, since 2×1139476819² = 2596814842076717522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1139476829) 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, 43826019 + ... + 43826044.

It is an arithmetic number, because the mean of its divisors is an integer number (306782224).

Almost surely, 2^1139476819 is an apocalyptic number.

1139476819 is a deficient number, since it is larger than the sum of its proper divisors (87652077).

1139476819 is an equidigital number, since it uses as much as digits as its factorization.

1139476819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87652076.

The product of its digits is 326592, while the sum is 49.

The square root of 1139476819 is about 33756.1375012012. The cubic root of 1139476819 is about 1044.4840959793.

The spelling of 1139476819 in words is "one billion, one hundred thirty-nine million, four hundred seventy-six thousand, eight hundred nineteen".