224789197 has 2 divisors, whose sum is σ = 224789198. Its totient is φ = 224789196.

The previous prime is 224789167. The next prime is 224789261. The reversal of 224789197 is 791987422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 130096836 + 94692361 = 11406^2 + 9731^2 .

It is a cyclic number.

It is not a de Polignac number, because 224789197 - 2²³ = 216400589 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 224789197.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224789167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112394598 + 112394599.

It is an arithmetic number, because the mean of its divisors is an integer number (112394599).

Almost surely, 2^224789197 is an apocalyptic number.

It is an amenable number.

224789197 is a deficient number, since it is larger than the sum of its proper divisors (1).

224789197 is an equidigital number, since it uses as much as digits as its factorization.

224789197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 224789197 is about 14992.9715867136. The cubic root of 224789197 is about 608.0301925868.

The spelling of 224789197 in words is "two hundred twenty-four million, seven hundred eighty-nine thousand, one hundred ninety-seven".