220064459 has 2 divisors, whose sum is σ = 220064460. Its totient is φ = 220064458.

The previous prime is 220064447. The next prime is 220064543. The reversal of 220064459 is 954460022.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 220064459 - 2²⁰ = 219015883 is a prime.

It is a super-2 number, since 2×220064459² = 96856732229925362, which contains 22 as substring.

It is a Chen prime.

It is equal to p_12125876 and since 220064459 and 12125876 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (220004459) 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, 110032229 + 110032230.

It is an arithmetic number, because the mean of its divisors is an integer number (110032230).

Almost surely, 2^220064459 is an apocalyptic number.

220064459 is a deficient number, since it is larger than the sum of its proper divisors (1).

220064459 is an equidigital number, since it uses as much as digits as its factorization.

220064459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 220064459 is about 14834.5697274980. The cubic root of 220064459 is about 603.7400265260.

The spelling of 220064459 in words is "two hundred twenty million, sixty-four thousand, four hundred fifty-nine".