873139 has 2 divisors, whose sum is σ = 873140. Its totient is φ = 873138.

The previous prime is 873133. The next prime is 873157. The reversal of 873139 is 931378.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 873139 - 2¹³ = 864947 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 873139.

It is not a weakly prime, because it can be changed into another prime (873133) 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, 436569 + 436570.

It is an arithmetic number, because the mean of its divisors is an integer number (436570).

2⁸⁷³¹³⁹ is an apocalyptic number.

873139 is a deficient number, since it is larger than the sum of its proper divisors (1).

873139 is an equidigital number, since it uses as much as digits as its factorization.

873139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 873139 is about 934.4190708670. The cubic root of 873139 is about 95.5787021527.

The spelling of 873139 in words is "eight hundred seventy-three thousand, one hundred thirty-nine".