138328199 has 2 divisors, whose sum is σ = 138328200. Its totient is φ = 138328198.

The previous prime is 138328193. The next prime is 138328207. The reversal of 138328199 is 991823831.

138328199 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 138328199 - 2¹² = 138324103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138328193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69164099 + 69164100.

It is an arithmetic number, because the mean of its divisors is an integer number (69164100).

Almost surely, 2^138328199 is an apocalyptic number.

138328199 is a deficient number, since it is larger than the sum of its proper divisors (1).

138328199 is an equidigital number, since it uses as much as digits as its factorization.

138328199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 138328199 is about 11761.3009059372. The cubic root of 138328199 is about 517.1742669201.

The spelling of 138328199 in words is "one hundred thirty-eight million, three hundred twenty-eight thousand, one hundred ninety-nine".