9102139 has 2 divisors, whose sum is σ = 9102140. Its totient is φ = 9102138.

The previous prime is 9102131. The next prime is 9102179. The reversal of 9102139 is 9312019.

9102139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9102139 - 2³ = 9102131 is a prime.

It is not a weakly prime, because it can be changed into another prime (9102131) 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, 4551069 + 4551070.

It is an arithmetic number, because the mean of its divisors is an integer number (4551070).

Almost surely, 2^9102139 is an apocalyptic number.

9102139 is a deficient number, since it is larger than the sum of its proper divisors (1).

9102139 is an equidigital number, since it uses as much as digits as its factorization.

9102139 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 25.

The square root of 9102139 is about 3016.9751407660. The cubic root of 9102139 is about 208.7923045245.

The spelling of 9102139 in words is "nine million, one hundred two thousand, one hundred thirty-nine".