138000827 has 2 divisors, whose sum is σ = 138000828. Its totient is φ = 138000826.

The previous prime is 138000799. The next prime is 138000829. The reversal of 138000827 is 728000831.

It is a strong prime.

It is an emirp because it is prime and its reverse (728000831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 138000827 - 2¹⁸ = 137738683 is a prime.

Together with 138000829, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 138000827.

It is not a weakly prime, because it can be changed into another prime (138000829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69000413 + 69000414.

It is an arithmetic number, because the mean of its divisors is an integer number (69000414).

Almost surely, 2^138000827 is an apocalyptic number.

138000827 is a deficient number, since it is larger than the sum of its proper divisors (1).

138000827 is an equidigital number, since it uses as much as digits as its factorization.

138000827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 138000827 is about 11747.3753238755. The cubic root of 138000827 is about 516.7659575159.

The spelling of 138000827 in words is "one hundred thirty-eight million, eight hundred twenty-seven", and thus it is an aban number.