1326886139 has 2 divisors, whose sum is σ = 1326886140. Its totient is φ = 1326886138.

The previous prime is 1326886069. The next prime is 1326886151. The reversal of 1326886139 is 9316886231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1326886139 - 2²⁸ = 1058450683 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1326886093 and 1326886102.

It is not a weakly prime, because it can be changed into another prime (1326886199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 663443069 + 663443070.

It is an arithmetic number, because the mean of its divisors is an integer number (663443070).

Almost surely, 2^1326886139 is an apocalyptic number.

1326886139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1326886139 is an equidigital number, since it uses as much as digits as its factorization.

1326886139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 47.

The square root of 1326886139 is about 36426.4483445751. The cubic root of 1326886139 is about 1098.8655353518.

The spelling of 1326886139 in words is "one billion, three hundred twenty-six million, eight hundred eighty-six thousand, one hundred thirty-nine".