138584230 has 16 divisors (see below), whose sum is σ = 250984944. Its totient is φ = 55092960.

The previous prime is 138584219. The next prime is 138584239. The reversal of 138584230 is 32485831.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138584239) 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, 40881 + ... + 44140.

It is an arithmetic number, because the mean of its divisors is an integer number (15686559).

It is the magic constant of a 652 × 652 magic square.

Almost surely, 2^138584230 is an apocalyptic number.

138584230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138584230 is a deficient number, since it is larger than the sum of its proper divisors (112400714).

138584230 is a wasteful number, since it uses less digits than its factorization.

138584230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85191.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 138584230 is about 11772.1803418058. The cubic root of 138584230 is about 517.4931487187.

The spelling of 138584230 in words is "one hundred thirty-eight million, five hundred eighty-four thousand, two hundred thirty".