220298497 has 2 divisors, whose sum is σ = 220298498. Its totient is φ = 220298496.

The previous prime is 220298387. The next prime is 220298537. The reversal of 220298497 is 794892022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 219306481 + 992016 = 14809^2 + 996^2 .

It is a cyclic number.

It is not a de Polignac number, because 220298497 - 2¹⁵ = 220265729 is a prime.

It is not a weakly prime, because it can be changed into another prime (220218497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110149248 + 110149249.

It is an arithmetic number, because the mean of its divisors is an integer number (110149249).

Almost surely, 2^220298497 is an apocalyptic number.

It is an amenable number.

220298497 is a deficient number, since it is larger than the sum of its proper divisors (1).

220298497 is an equidigital number, since it uses as much as digits as its factorization.

220298497 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 220298497 is about 14842.4558951678. The cubic root of 220298497 is about 603.9539760335.

The spelling of 220298497 in words is "two hundred twenty million, two hundred ninety-eight thousand, four hundred ninety-seven".