853231019 has 2 divisors, whose sum is σ = 853231020. Its totient is φ = 853231018.

The previous prime is 853231009. The next prime is 853231103. The reversal of 853231019 is 910132358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 853231019 - 2²⁴ = 836453803 is a prime.

It is a super-2 number, since 2×853231019² = 1456006343567556722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (853231009) 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, 426615509 + 426615510.

It is an arithmetic number, because the mean of its divisors is an integer number (426615510).

Almost surely, 2^853231019 is an apocalyptic number.

853231019 is a deficient number, since it is larger than the sum of its proper divisors (1).

853231019 is an equidigital number, since it uses as much as digits as its factorization.

853231019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 853231019 is about 29210.1184352272. The cubic root of 853231019 is about 948.4669712273.

The spelling of 853231019 in words is "eight hundred fifty-three million, two hundred thirty-one thousand, nineteen".