203130139 has 2 divisors, whose sum is σ = 203130140. Its totient is φ = 203130138.

The previous prime is 203130107. The next prime is 203130143. The reversal of 203130139 is 931031302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 203130139 - 2⁵ = 203130107 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (203190139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101565069 + 101565070.

It is an arithmetic number, because the mean of its divisors is an integer number (101565070).

Almost surely, 2^203130139 is an apocalyptic number.

203130139 is a deficient number, since it is larger than the sum of its proper divisors (1).

203130139 is an equidigital number, since it uses as much as digits as its factorization.

203130139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

The square root of 203130139 is about 14252.3731006454. The cubic root of 203130139 is about 587.8386292254.

The spelling of 203130139 in words is "two hundred three million, one hundred thirty thousand, one hundred thirty-nine".