138823715229 has 8 divisors (see below), whose sum is σ = 185510534400. Its totient is φ = 92343019776.

The previous prime is 138823715207. The next prime is 138823715231. The reversal of 138823715229 is 922517328831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 138823715229 - 2⁷ = 138823715101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138823717229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51529357 + ... + 51532050.

It is an arithmetic number, because the mean of its divisors is an integer number (23188816800).

Almost surely, 2^138823715229 is an apocalyptic number.

It is an amenable number.

138823715229 is a deficient number, since it is larger than the sum of its proper divisors (46686819171).

138823715229 is a wasteful number, since it uses less digits than its factorization.

138823715229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103061859.

The product of its digits is 1451520, while the sum is 51.

The spelling of 138823715229 in words is "one hundred thirty-eight billion, eight hundred twenty-three million, seven hundred fifteen thousand, two hundred twenty-nine".