1139400047 has 2 divisors, whose sum is σ = 1139400048. Its totient is φ = 1139400046.

The previous prime is 1139400007. The next prime is 1139400049. The reversal of 1139400047 is 7400049311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1139400047 - 2⁸ = 1139399791 is a prime.

Together with 1139400049, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1139399992 and 1139400019.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1139400049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569700023 + 569700024.

It is an arithmetic number, because the mean of its divisors is an integer number (569700024).

Almost surely, 2^1139400047 is an apocalyptic number.

1139400047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1139400047 is an equidigital number, since it uses as much as digits as its factorization.

1139400047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1139400047 is about 33755.0003258776. Note that the first 3 decimals coincide. The cubic root of 1139400047 is about 1044.4606381570.

Adding to 1139400047 its reverse (7400049311), we get a palindrome (8539449358).

The spelling of 1139400047 in words is "one billion, one hundred thirty-nine million, four hundred thousand, forty-seven".