138223084569 has 16 divisors (see below), whose sum is σ = 190687737600. Its totient is φ = 88954750976.

The previous prime is 138223084529. The next prime is 138223084583. The reversal of 138223084569 is 965480322831.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 138223084569 - 2¹¹ = 138223082521 is a prime.

It is a super-2 number, since 2×138223084569² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138223084529) 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 15 ways as a sum of consecutive naturals, for example, 336217 + ... + 624089.

It is an arithmetic number, because the mean of its divisors is an integer number (11917983600).

Almost surely, 2^138223084569 is an apocalyptic number.

It is an amenable number.

138223084569 is a deficient number, since it is larger than the sum of its proper divisors (52464653031).

138223084569 is a wasteful number, since it uses less digits than its factorization.

138223084569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293424.

The product of its (nonzero) digits is 2488320, while the sum is 51.

The spelling of 138223084569 in words is "one hundred thirty-eight billion, two hundred twenty-three million, eighty-four thousand, five hundred sixty-nine".