138331183 has 2 divisors, whose sum is σ = 138331184. Its totient is φ = 138331182.

The previous prime is 138331181. The next prime is 138331211. The reversal of 138331183 is 381133831.

It is a happy number.

138331183 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 138331183 - 2¹ = 138331181 is a prime.

Together with 138331181, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138331181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69165591 + 69165592.

It is an arithmetic number, because the mean of its divisors is an integer number (69165592).

Almost surely, 2^138331183 is an apocalyptic number.

138331183 is a deficient number, since it is larger than the sum of its proper divisors (1).

138331183 is an equidigital number, since it uses as much as digits as its factorization.

138331183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5184, while the sum is 31.

The square root of 138331183 is about 11761.4277619684. The cubic root of 138331183 is about 517.1779857013.

The spelling of 138331183 in words is "one hundred thirty-eight million, three hundred thirty-one thousand, one hundred eighty-three".