852191 has 2 divisors, whose sum is σ = 852192. Its totient is φ = 852190.

The previous prime is 852179. The next prime is 852197. The reversal of 852191 is 191258.

It is a happy number.

852191 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 a de Polignac number, because none of the positive numbers 2^k-852191 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 852191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (852197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426095 + 426096.

It is an arithmetic number, because the mean of its divisors is an integer number (426096).

2⁸⁵²¹⁹¹ is an apocalyptic number.

852191 is a deficient number, since it is larger than the sum of its proper divisors (1).

852191 is an equidigital number, since it uses as much as digits as its factorization.

852191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 720, while the sum is 26.

The square root of 852191 is about 923.1419175836. The cubic root of 852191 is about 94.8081446592.

Subtracting from 852191 its sum of digits (26), we obtain a triangular number (852165 = T₁₃₀₅).

The spelling of 852191 in words is "eight hundred fifty-two thousand, one hundred ninety-one".