138224519 has 8 divisors (see below), whose sum is σ = 140300160. Its totient is φ = 136164600.

The previous prime is 138224491. The next prime is 138224531. The reversal of 138224519 is 915422831.

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

It is a cyclic number.

It is not a de Polignac number, because 138224519 - 2²⁰ = 137175943 is a prime.

It is a super-2 number, since 2×138224519² = 38212035305562722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138224539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14414 + ... + 22004.

It is an arithmetic number, because the mean of its divisors is an integer number (17537520).

Almost surely, 2^138224519 is an apocalyptic number.

138224519 is a deficient number, since it is larger than the sum of its proper divisors (2075641).

138224519 is a wasteful number, since it uses less digits than its factorization.

138224519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7861.

The product of its digits is 17280, while the sum is 35.

The square root of 138224519 is about 11756.8924040326. The cubic root of 138224519 is about 517.0450234962.

The spelling of 138224519 in words is "one hundred thirty-eight million, two hundred twenty-four thousand, five hundred nineteen".