138000847 has 2 divisors, whose sum is σ = 138000848. Its totient is φ = 138000846.

The previous prime is 138000829. The next prime is 138000887. The reversal of 138000847 is 748000831.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (748000831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138000847 - 2²⁷ = 3783119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (138000827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69000423 + 69000424.

It is an arithmetic number, because the mean of its divisors is an integer number (69000424).

Almost surely, 2^138000847 is an apocalyptic number.

138000847 is a deficient number, since it is larger than the sum of its proper divisors (1).

138000847 is an equidigital number, since it uses as much as digits as its factorization.

138000847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 138000847 is about 11747.3761751295. The cubic root of 138000847 is about 516.7659824803.

The spelling of 138000847 in words is "one hundred thirty-eight million, eight hundred forty-seven", and thus it is an aban number.