361224197 has 2 divisors, whose sum is σ = 361224198. Its totient is φ = 361224196.

The previous prime is 361224191. The next prime is 361224239. The reversal of 361224197 is 791422163.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 333829441 + 27394756 = 18271^2 + 5234^2 .

It is a cyclic number.

It is not a de Polignac number, because 361224197 - 2¹⁸ = 360962053 is a prime.

It is equal to p_19373219 and since 361224197 and 19373219 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (361224191) 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, 180612098 + 180612099.

It is an arithmetic number, because the mean of its divisors is an integer number (180612099).

Almost surely, 2^361224197 is an apocalyptic number.

It is an amenable number.

361224197 is a deficient number, since it is larger than the sum of its proper divisors (1).

361224197 is an equidigital number, since it uses as much as digits as its factorization.

361224197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 361224197 is about 19005.8990053089. The cubic root of 361224197 is about 712.1841075101.

The spelling of 361224197 in words is "three hundred sixty-one million, two hundred twenty-four thousand, one hundred ninety-seven".