138716227 has 8 divisors (see below), whose sum is σ = 154206080. Its totient is φ = 123914880.

The previous prime is 138716203. The next prime is 138716231. The reversal of 138716227 is 722617831.

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 138716227 - 2²³ = 130327619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (138716267) 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, 171702 + ... + 172507.

It is an arithmetic number, because the mean of its divisors is an integer number (19275760).

Almost surely, 2^138716227 is an apocalyptic number.

138716227 is a deficient number, since it is larger than the sum of its proper divisors (15489853).

138716227 is a wasteful number, since it uses less digits than its factorization.

138716227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344253.

The product of its digits is 28224, while the sum is 37.

The square root of 138716227 is about 11777.7853181318. The cubic root of 138716227 is about 517.6573950828.

The spelling of 138716227 in words is "one hundred thirty-eight million, seven hundred sixteen thousand, two hundred twenty-seven".