138224699 has 2 divisors, whose sum is σ = 138224700. Its totient is φ = 138224698.

The previous prime is 138224657. The next prime is 138224707. The reversal of 138224699 is 996422831.

It is a strong prime.

It is an emirp because it is prime and its reverse (996422831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138224699 - 2¹² = 138220603 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138229699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69112349 + 69112350.

It is an arithmetic number, because the mean of its divisors is an integer number (69112350).

Almost surely, 2^138224699 is an apocalyptic number.

138224699 is a deficient number, since it is larger than the sum of its proper divisors (1).

138224699 is an equidigital number, since it uses as much as digits as its factorization.

138224699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 186624, while the sum is 44.

The square root of 138224699 is about 11756.9000591142. The cubic root of 138224699 is about 517.0452479332.

The spelling of 138224699 in words is "one hundred thirty-eight million, two hundred twenty-four thousand, six hundred ninety-nine".