138194699 has 2 divisors, whose sum is σ = 138194700. Its totient is φ = 138194698.

The previous prime is 138194687. The next prime is 138194713. The reversal of 138194699 is 996491831.

138194699 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 a de Polignac number, because none of the positive numbers 2^k-138194699 is a prime.

It is a super-3 number, since 3×138194699³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (138194659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69097349 + 69097350.

It is an arithmetic number, because the mean of its divisors is an integer number (69097350).

Almost surely, 2^138194699 is an apocalyptic number.

138194699 is a deficient number, since it is larger than the sum of its proper divisors (1).

138194699 is an equidigital number, since it uses as much as digits as its factorization.

138194699 is an evil number, because the sum of its binary digits is even.

The product of its digits is 419904, while the sum is 50.

The square root of 138194699 is about 11755.6241433622. The cubic root of 138194699 is about 517.0078390864.

The spelling of 138194699 in words is "one hundred thirty-eight million, one hundred ninety-four thousand, six hundred ninety-nine".