220480297 has 2 divisors, whose sum is σ = 220480298. Its totient is φ = 220480296.

The previous prime is 220480279. The next prime is 220480303. The reversal of 220480297 is 792084022.

Together with previous prime (220480279) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 114575616 + 105904681 = 10704^2 + 10291^2 .

It is a cyclic number.

It is not a de Polignac number, because 220480297 - 2¹¹ = 220478249 is a prime.

It is a super-2 number, since 2×220480297² = 97223122730416418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (220480097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110240148 + 110240149.

It is an arithmetic number, because the mean of its divisors is an integer number (110240149).

Almost surely, 2^220480297 is an apocalyptic number.

It is an amenable number.

220480297 is a deficient number, since it is larger than the sum of its proper divisors (1).

220480297 is an equidigital number, since it uses as much as digits as its factorization.

220480297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 220480297 is about 14848.5789555769. The cubic root of 220480297 is about 604.1200668067.

The spelling of 220480297 in words is "two hundred twenty million, four hundred eighty thousand, two hundred ninety-seven".