201204139 has 2 divisors, whose sum is σ = 201204140. Its totient is φ = 201204138.

The previous prime is 201204119. The next prime is 201204151. The reversal of 201204139 is 931402102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201204139 - 2¹⁵ = 201171371 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201204109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100602069 + 100602070.

It is an arithmetic number, because the mean of its divisors is an integer number (100602070).

Almost surely, 2^201204139 is an apocalyptic number.

201204139 is a deficient number, since it is larger than the sum of its proper divisors (1).

201204139 is an equidigital number, since it uses as much as digits as its factorization.

201204139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 201204139 is about 14184.6444791542. The cubic root of 201204139 is about 585.9748413758.

The spelling of 201204139 in words is "two hundred one million, two hundred four thousand, one hundred thirty-nine".