244561 has 2 divisors, whose sum is σ = 244562. Its totient is φ = 244560.

The previous prime is 244553. The next prime is 244567. The reversal of 244561 is 165442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230400 + 14161 = 480^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 244561 - 2³ = 244553 is a prime.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (244567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122280 + 122281.

It is an arithmetic number, because the mean of its divisors is an integer number (122281).

2²⁴⁴⁵⁶¹ is an apocalyptic number.

It is an amenable number.

244561 is a deficient number, since it is larger than the sum of its proper divisors (1).

244561 is an equidigital number, since it uses as much as digits as its factorization.

244561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 22.

The square root of 244561 is about 494.5310910347. The cubic root of 244561 is about 62.5358514309.

The spelling of 244561 in words is "two hundred forty-four thousand, five hundred sixty-one".