835139 has 2 divisors, whose sum is σ = 835140. Its totient is φ = 835138.

The previous prime is 835123. The next prime is 835141. The reversal of 835139 is 931538.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 835139 - 2⁴ = 835123 is a prime.

Together with 835141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (835039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417569 + 417570.

It is an arithmetic number, because the mean of its divisors is an integer number (417570).

2⁸³⁵¹³⁹ is an apocalyptic number.

835139 is a deficient number, since it is larger than the sum of its proper divisors (1).

835139 is an equidigital number, since it uses as much as digits as its factorization.

835139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240, while the sum is 29.

The square root of 835139 is about 913.8593983759. The cubic root of 835139 is about 94.1715217517.

The spelling of 835139 in words is "eight hundred thirty-five thousand, one hundred thirty-nine".