138229086 has 32 divisors (see below), whose sum is σ = 280055808. Its totient is φ = 45480960.

The previous prime is 138229079. The next prime is 138229097. The reversal of 138229086 is 680922831.

It is a happy number.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215326 + ... + 215966.

It is an arithmetic number, because the mean of its divisors is an integer number (8751744).

Almost surely, 2^138229086 is an apocalyptic number.

138229086 is an abundant number, since it is smaller than the sum of its proper divisors (141826722).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138229086 is a wasteful number, since it uses less digits than its factorization.

138229086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056.

The product of its (nonzero) digits is 41472, while the sum is 39.

The square root of 138229086 is about 11757.0866289230. The cubic root of 138229086 is about 517.0507178999.

The spelling of 138229086 in words is "one hundred thirty-eight million, two hundred twenty-nine thousand, eighty-six".