138016933 has 2 divisors, whose sum is σ = 138016934. Its totient is φ = 138016932.

The previous prime is 138016927. The next prime is 138016943. The reversal of 138016933 is 339610831.

138016933 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 can be written as a sum of positive squares in only one way, i.e., 82410084 + 55606849 = 9078^2 + 7457^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-138016933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138016943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69008466 + 69008467.

It is an arithmetic number, because the mean of its divisors is an integer number (69008467).

Almost surely, 2^138016933 is an apocalyptic number.

It is an amenable number.

138016933 is a deficient number, since it is larger than the sum of its proper divisors (1).

138016933 is an equidigital number, since it uses as much as digits as its factorization.

138016933 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 34.

The square root of 138016933 is about 11748.0608187054. The cubic root of 138016933 is about 516.7860605567.

The spelling of 138016933 in words is "one hundred thirty-eight million, sixteen thousand, nine hundred thirty-three".