220853497 has 2 divisors, whose sum is σ = 220853498. Its totient is φ = 220853496.

The previous prime is 220853459. The next prime is 220853509. The reversal of 220853497 is 794358022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 142778601 + 78074896 = 11949^2 + 8836^2 .

It is a cyclic number.

It is not a de Polignac number, because 220853497 - 2¹⁹ = 220329209 is a prime.

It is a super-3 number, since 3×220853497³ (a number of 26 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (220853417) 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, 110426748 + 110426749.

It is an arithmetic number, because the mean of its divisors is an integer number (110426749).

Almost surely, 2^220853497 is an apocalyptic number.

It is an amenable number.

220853497 is a deficient number, since it is larger than the sum of its proper divisors (1).

220853497 is an equidigital number, since it uses as much as digits as its factorization.

220853497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 220853497 is about 14861.1405013209. The cubic root of 220853497 is about 604.4607329541.

The spelling of 220853497 in words is "two hundred twenty million, eight hundred fifty-three thousand, four hundred ninety-seven".