853123 has 2 divisors, whose sum is σ = 853124. Its totient is φ = 853122.

The previous prime is 853103. The next prime is 853133. The reversal of 853123 is 321358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853123 - 2⁵ = 853091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 853094 and 853103.

It is not a weakly prime, because it can be changed into another prime (853103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426561 + 426562.

It is an arithmetic number, because the mean of its divisors is an integer number (426562).

2⁸⁵³¹²³ is an apocalyptic number.

853123 is a deficient number, since it is larger than the sum of its proper divisors (1).

853123 is an equidigital number, since it uses as much as digits as its factorization.

853123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 22.

The square root of 853123 is about 923.6465774310. The cubic root of 853123 is about 94.8426944249.

The spelling of 853123 in words is "eight hundred fifty-three thousand, one hundred twenty-three".