138485229 has 16 divisors (see below), whose sum is σ = 186865152. Its totient is φ = 91219968.

The previous prime is 138485197. The next prime is 138485233. The reversal of 138485229 is 922584831.

It is not a de Polignac number, because 138485229 - 2⁵ = 138485197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138485729) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205437 + ... + 206109.

It is an arithmetic number, because the mean of its divisors is an integer number (11679072).

Almost surely, 2^138485229 is an apocalyptic number.

It is an amenable number.

138485229 is a deficient number, since it is larger than the sum of its proper divisors (48379923).

138485229 is a wasteful number, since it uses less digits than its factorization.

138485229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1396.

The product of its digits is 138240, while the sum is 42.

The square root of 138485229 is about 11767.9747195514. The cubic root of 138485229 is about 517.3698914434.

The spelling of 138485229 in words is "one hundred thirty-eight million, four hundred eighty-five thousand, two hundred twenty-nine".