244205261 has 2 divisors, whose sum is σ = 244205262. Its totient is φ = 244205260.

The previous prime is 244205257. The next prime is 244205341. The reversal of 244205261 is 162502442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240064036 + 4141225 = 15494^2 + 2035^2 .

It is a cyclic number.

It is not a de Polignac number, because 244205261 - 2² = 244205257 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 244205261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (244205251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122102630 + 122102631.

It is an arithmetic number, because the mean of its divisors is an integer number (122102631).

Almost surely, 2^244205261 is an apocalyptic number.

It is an amenable number.

244205261 is a deficient number, since it is larger than the sum of its proper divisors (1).

244205261 is an equidigital number, since it uses as much as digits as its factorization.

244205261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 244205261 is about 15627.0682151196. The cubic root of 244205261 is about 625.0551511865.

The spelling of 244205261 in words is "two hundred forty-four million, two hundred five thousand, two hundred sixty-one".