853922191 has 2 divisors, whose sum is σ = 853922192. Its totient is φ = 853922190.

The previous prime is 853922123. The next prime is 853922203. The reversal of 853922191 is 191229358.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 853922191 - 2²⁹ = 317051279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (853922101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426961095 + 426961096.

It is an arithmetic number, because the mean of its divisors is an integer number (426961096).

Almost surely, 2^853922191 is an apocalyptic number.

853922191 is a deficient number, since it is larger than the sum of its proper divisors (1).

853922191 is an equidigital number, since it uses as much as digits as its factorization.

853922191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 40.

The square root of 853922191 is about 29221.9470774964. The cubic root of 853922191 is about 948.7230085196.

The spelling of 853922191 in words is "eight hundred fifty-three million, nine hundred twenty-two thousand, one hundred ninety-one".