12850139 has 2 divisors, whose sum is σ = 12850140. Its totient is φ = 12850138.

The previous prime is 12850121. The next prime is 12850153. The reversal of 12850139 is 93105821.

12850139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12850139 - 2⁸ = 12849883 is a prime.

It is equal to p₈₄₀₁₇₉ and since 12850139 and 840179 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (12850039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6425069 + 6425070.

It is an arithmetic number, because the mean of its divisors is an integer number (6425070).

Almost surely, 2^12850139 is an apocalyptic number.

12850139 is a deficient number, since it is larger than the sum of its proper divisors (1).

12850139 is an equidigital number, since it uses as much as digits as its factorization.

12850139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 12850139 is about 3584.7090537448. The cubic root of 12850139 is about 234.2264530471.

The spelling of 12850139 in words is "twelve million, eight hundred fifty thousand, one hundred thirty-nine".