138328699 has 2 divisors, whose sum is σ = 138328700. Its totient is φ = 138328698.

The previous prime is 138328667. The next prime is 138328703. The reversal of 138328699 is 996823831.

It is a strong prime.

It is an emirp because it is prime and its reverse (996823831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138328699 - 2⁵ = 138328667 is a prime.

It is not a weakly prime, because it can be changed into another prime (138328199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69164349 + 69164350.

It is an arithmetic number, because the mean of its divisors is an integer number (69164350).

Almost surely, 2^138328699 is an apocalyptic number.

138328699 is a deficient number, since it is larger than the sum of its proper divisors (1).

138328699 is an equidigital number, since it uses as much as digits as its factorization.

138328699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 559872, while the sum is 49.

The square root of 138328699 is about 11761.3221620700. The cubic root of 138328699 is about 517.1748900440.

The spelling of 138328699 in words is "one hundred thirty-eight million, three hundred twenty-eight thousand, six hundred ninety-nine".