244143402197 has 2 divisors, whose sum is σ = 244143402198. Its totient is φ = 244143402196.

The previous prime is 244143402143. The next prime is 244143402199. The reversal of 244143402197 is 791204341442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153882813841 + 90260588356 = 392279^2 + 300434^2 .

It is a cyclic number.

It is not a de Polignac number, because 244143402197 - 2¹⁴ = 244143385813 is a prime.

It is a super-2 number, since 2×244143402197² (a number of 24 digits) contains 22 as substring.

Together with 244143402199, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244143402199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122071701098 + 122071701099.

It is an arithmetic number, because the mean of its divisors is an integer number (122071701099).

Almost surely, 2^244143402197 is an apocalyptic number.

It is an amenable number.

244143402197 is a deficient number, since it is larger than the sum of its proper divisors (1).

244143402197 is an equidigital number, since it uses as much as digits as its factorization.

244143402197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 244143402197 in words is "two hundred forty-four billion, one hundred forty-three million, four hundred two thousand, one hundred ninety-seven".