138417223 has 8 divisors (see below), whose sum is σ = 166517120. Its totient is φ = 112398840.

The previous prime is 138417221. The next prime is 138417241. The reversal of 138417223 is 322714831.

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 138417223 - 2¹ = 138417221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138417221) 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, 520233 + ... + 520498.

It is an arithmetic number, because the mean of its divisors is an integer number (20814640).

Almost surely, 2^138417223 is an apocalyptic number.

138417223 is a deficient number, since it is larger than the sum of its proper divisors (28099897).

138417223 is a wasteful number, since it uses less digits than its factorization.

138417223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040757.

The product of its digits is 8064, while the sum is 31.

The square root of 138417223 is about 11765.0849125708. The cubic root of 138417223 is about 517.2851892265.

The spelling of 138417223 in words is "one hundred thirty-eight million, four hundred seventeen thousand, two hundred twenty-three".