138027201 has 24 divisors (see below), whose sum is σ = 202594176. Its totient is φ = 83528640.

The previous prime is 138027181. The next prime is 138027277. The reversal of 138027201 is 102720831.

It is not a de Polignac number, because 138027201 - 2⁷ = 138027073 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (138027101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28696 + ... + 33158.

It is an arithmetic number, because the mean of its divisors is an integer number (8441424).

Almost surely, 2^138027201 is an apocalyptic number.

It is an amenable number.

138027201 is a deficient number, since it is larger than the sum of its proper divisors (64566975).

138027201 is a wasteful number, since it uses less digits than its factorization.

138027201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553 (or 4540 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 24.

The square root of 138027201 is about 11748.4978188703. The cubic root of 138027201 is about 516.7988759593.

The spelling of 138027201 in words is "one hundred thirty-eight million, twenty-seven thousand, two hundred one".