244542257 has 2 divisors, whose sum is σ = 244542258. Its totient is φ = 244542256.

The previous prime is 244542253. The next prime is 244542271. The reversal of 244542257 is 752245442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 148815601 + 95726656 = 12199^2 + 9784^2 .

It is a cyclic number.

It is not a de Polignac number, because 244542257 - 2² = 244542253 is a prime.

It is not a weakly prime, because it can be changed into another prime (244542253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122271128 + 122271129.

It is an arithmetic number, because the mean of its divisors is an integer number (122271129).

Almost surely, 2^244542257 is an apocalyptic number.

It is an amenable number.

244542257 is a deficient number, since it is larger than the sum of its proper divisors (1).

244542257 is an equidigital number, since it uses as much as digits as its factorization.

244542257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 89600, while the sum is 35.

The square root of 244542257 is about 15637.8469425941. The cubic root of 244542257 is about 625.3425382072.

Adding to 244542257 its reverse (752245442), we get a palindrome (996787699).

The spelling of 244542257 in words is "two hundred forty-four million, five hundred forty-two thousand, two hundred fifty-seven".