1399330139 has 2 divisors, whose sum is σ = 1399330140. Its totient is φ = 1399330138.

The previous prime is 1399330091. The next prime is 1399330147. The reversal of 1399330139 is 9310339931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1399330139 - 2¹² = 1399326043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1399330096 and 1399330105.

It is not a weakly prime, because it can be changed into another prime (1399330159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 699665069 + 699665070.

It is an arithmetic number, because the mean of its divisors is an integer number (699665070).

Almost surely, 2^1399330139 is an apocalyptic number.

1399330139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1399330139 is an equidigital number, since it uses as much as digits as its factorization.

1399330139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 59049, while the sum is 41.

The square root of 1399330139 is about 37407.6214025966. The cubic root of 1399330139 is about 1118.5104931190.

The spelling of 1399330139 in words is "one billion, three hundred ninety-nine million, three hundred thirty thousand, one hundred thirty-nine".