854521223 has 2 divisors, whose sum is σ = 854521224. Its totient is φ = 854521222.

The previous prime is 854521193. The next prime is 854521229. The reversal of 854521223 is 322125458.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 854521223 - 2¹⁸ = 854259079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 854521223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (854521229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 427260611 + 427260612.

It is an arithmetic number, because the mean of its divisors is an integer number (427260612).

Almost surely, 2^854521223 is an apocalyptic number.

854521223 is a deficient number, since it is larger than the sum of its proper divisors (1).

854521223 is an equidigital number, since it uses as much as digits as its factorization.

854521223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19200, while the sum is 32.

The square root of 854521223 is about 29232.1949740350. The cubic root of 854521223 is about 948.9448017956.

The spelling of 854521223 in words is "eight hundred fifty-four million, five hundred twenty-one thousand, two hundred twenty-three".