201000139 has 2 divisors, whose sum is σ = 201000140. Its totient is φ = 201000138.

The previous prime is 201000133. The next prime is 201000161. The reversal of 201000139 is 931000102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 201000139 - 2⁹ = 200999627 is a prime.

It is not a weakly prime, because it can be changed into another prime (201000133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100500069 + 100500070.

It is an arithmetic number, because the mean of its divisors is an integer number (100500070).

Almost surely, 2^201000139 is an apocalyptic number.

201000139 is a deficient number, since it is larger than the sum of its proper divisors (1).

201000139 is an equidigital number, since it uses as much as digits as its factorization.

201000139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 201000139 is about 14177.4517809090. The cubic root of 201000139 is about 585.7767352948.

The spelling of 201000139 in words is "two hundred one million, one hundred thirty-nine", and thus it is an aban number.