244020197 has 2 divisors, whose sum is σ = 244020198. Its totient is φ = 244020196.

The previous prime is 244020169. The next prime is 244020221. The reversal of 244020197 is 791020442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240901441 + 3118756 = 15521^2 + 1766^2 .

It is a cyclic number.

It is not a de Polignac number, because 244020197 - 2¹⁴ = 244003813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244022197) 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, 122010098 + 122010099.

It is an arithmetic number, because the mean of its divisors is an integer number (122010099).

Almost surely, 2^244020197 is an apocalyptic number.

It is an amenable number.

244020197 is a deficient number, since it is larger than the sum of its proper divisors (1).

244020197 is an equidigital number, since it uses as much as digits as its factorization.

244020197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 244020197 is about 15621.1458286516. The cubic root of 244020197 is about 624.8972178716.

The spelling of 244020197 in words is "two hundred forty-four million, twenty thousand, one hundred ninety-seven".