138000270 has 32 divisors (see below), whose sum is σ = 342623520. Its totient is φ = 35530880.

The previous prime is 138000227. The next prime is 138000293. The reversal of 138000270 is 72000831.

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, 78441 + ... + 80180.

It is an arithmetic number, because the mean of its divisors is an integer number (10706985).

Almost surely, 2^138000270 is an apocalyptic number.

138000270 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

138000270 is an abundant number, since it is smaller than the sum of its proper divisors (204623250).

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

138000270 is a wasteful number, since it uses less digits than its factorization.

138000270 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158660.

The product of its (nonzero) digits is 336, while the sum is 21.

The square root of 138000270 is about 11747.3516164283. The cubic root of 138000270 is about 516.7652622567.

The spelling of 138000270 in words is "one hundred thirty-eight million, two hundred seventy", and thus it is an aban number.