138414189 has 8 divisors (see below), whose sum is σ = 185005120. Its totient is φ = 92049696.

The previous prime is 138414179. The next prime is 138414197. The reversal of 138414189 is 981414831.

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

It is not a de Polignac number, because 138414189 - 2¹² = 138410093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138414169) 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, 55177 + ... + 57630.

It is an arithmetic number, because the mean of its divisors is an integer number (23125640).

Almost surely, 2^138414189 is an apocalyptic number.

It is an amenable number.

138414189 is a deficient number, since it is larger than the sum of its proper divisors (46590931).

138414189 is a wasteful number, since it uses less digits than its factorization.

138414189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113219.

The product of its digits is 27648, while the sum is 39.

The square root of 138414189 is about 11764.9559710183. The cubic root of 138414189 is about 517.2814096999.

The spelling of 138414189 in words is "one hundred thirty-eight million, four hundred fourteen thousand, one hundred eighty-nine".