264785219 has 2 divisors, whose sum is σ = 264785220. Its totient is φ = 264785218.

The previous prime is 264785207. The next prime is 264785231. The reversal of 264785219 is 912587462.

It is a happy number.

264785219 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (264785207) and next prime (264785231).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-264785219 is a prime.

It is a super-2 number, since 2×264785219² = 140222424401755922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 264785219.

It is not a weakly prime, because it can be changed into another prime (264785239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132392609 + 132392610.

It is an arithmetic number, because the mean of its divisors is an integer number (132392610).

Almost surely, 2^264785219 is an apocalyptic number.

264785219 is a deficient number, since it is larger than the sum of its proper divisors (1).

264785219 is an equidigital number, since it uses as much as digits as its factorization.

264785219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 241920, while the sum is 44.

The square root of 264785219 is about 16272.2223128865. Note that the first 3 decimals coincide. The cubic root of 264785219 is about 642.1422508386.

The spelling of 264785219 in words is "two hundred sixty-four million, seven hundred eighty-five thousand, two hundred nineteen".