138083289 has 4 divisors (see below), whose sum is σ = 184111056. Its totient is φ = 92055524.

The previous prime is 138083263. The next prime is 138083327. The reversal of 138083289 is 982380831.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 138083289 - 2¹⁶ = 138017753 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138083289.

It is not an unprimeable number, because it can be changed into a prime (138083219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23013879 + ... + 23013884.

It is an arithmetic number, because the mean of its divisors is an integer number (46027764).

Almost surely, 2^138083289 is an apocalyptic number.

It is an amenable number.

138083289 is a deficient number, since it is larger than the sum of its proper divisors (46027767).

138083289 is an equidigital number, since it uses as much as digits as its factorization.

138083289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46027766.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 138083289 is about 11750.8846049989. The cubic root of 138083289 is about 516.8688676947.

The spelling of 138083289 in words is "one hundred thirty-eight million, eighty-three thousand, two hundred eighty-nine".