164312263 has 2 divisors, whose sum is σ = 164312264. Its totient is φ = 164312262.

The previous prime is 164312257. The next prime is 164312279. The reversal of 164312263 is 362213461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164312263 - 2⁹ = 164311751 is a prime.

It is equal to p_9202618 and since 164312263 and 9202618 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164312063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82156131 + 82156132.

It is an arithmetic number, because the mean of its divisors is an integer number (82156132).

Almost surely, 2^164312263 is an apocalyptic number.

164312263 is a deficient number, since it is larger than the sum of its proper divisors (1).

164312263 is an equidigital number, since it uses as much as digits as its factorization.

164312263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 28.

The square root of 164312263 is about 12818.4344987990. The cubic root of 164312263 is about 547.7175527355.

The spelling of 164312263 in words is "one hundred sixty-four million, three hundred twelve thousand, two hundred sixty-three".