220246249 has 2 divisors, whose sum is σ = 220246250. Its totient is φ = 220246248.

The previous prime is 220246241. The next prime is 220246259. The reversal of 220246249 is 942642022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 170119849 + 50126400 = 13043^2 + 7080^2 .

It is a cyclic number.

It is not a de Polignac number, because 220246249 - 2³ = 220246241 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 220246249.

It is not a weakly prime, because it can be changed into another prime (220246241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110123124 + 110123125.

It is an arithmetic number, because the mean of its divisors is an integer number (110123125).

Almost surely, 2^220246249 is an apocalyptic number.

It is an amenable number.

220246249 is a deficient number, since it is larger than the sum of its proper divisors (1).

220246249 is an equidigital number, since it uses as much as digits as its factorization.

220246249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 31.

The square root of 220246249 is about 14840.6957047168. The cubic root of 220246249 is about 603.9062258479.

The spelling of 220246249 in words is "two hundred twenty million, two hundred forty-six thousand, two hundred forty-nine".