244276561 has 2 divisors, whose sum is σ = 244276562. Its totient is φ = 244276560.

The previous prime is 244276547. The next prime is 244276567. The reversal of 244276561 is 165672442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 149817600 + 94458961 = 12240^2 + 9719^2 .

It is a cyclic number.

It is not a de Polignac number, because 244276561 - 2⁹ = 244276049 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 244276561.

It is not a weakly prime, because it can be changed into another prime (244276567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122138280 + 122138281.

It is an arithmetic number, because the mean of its divisors is an integer number (122138281).

Almost surely, 2^244276561 is an apocalyptic number.

It is an amenable number.

244276561 is a deficient number, since it is larger than the sum of its proper divisors (1).

244276561 is an equidigital number, since it uses as much as digits as its factorization.

244276561 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 37.

The square root of 244276561 is about 15629.3493466619. The cubic root of 244276561 is about 625.1159771975.

It can be divided in two parts, 2442 and 76561, that added together give a triangular number (79003 = T₃₉₇).

The spelling of 244276561 in words is "two hundred forty-four million, two hundred seventy-six thousand, five hundred sixty-one".