244340137 has 2 divisors, whose sum is σ = 244340138. Its totient is φ = 244340136.

The previous prime is 244340111. The next prime is 244340141. The reversal of 244340137 is 731043442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 215384976 + 28955161 = 14676^2 + 5381^2 .

It is a cyclic number.

It is not a de Polignac number, because 244340137 - 2⁷ = 244340009 is a prime.

It is a Chen prime.

It is equal to p_13386223 and since 244340137 and 13386223 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (244341137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122170068 + 122170069.

It is an arithmetic number, because the mean of its divisors is an integer number (122170069).

Almost surely, 2^244340137 is an apocalyptic number.

It is an amenable number.

244340137 is a deficient number, since it is larger than the sum of its proper divisors (1).

244340137 is an equidigital number, since it uses as much as digits as its factorization.

244340137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 28.

The square root of 244340137 is about 15631.3830802012. The cubic root of 244340137 is about 625.1702038848.

Adding to 244340137 its reverse (731043442), we get a palindrome (975383579).

The spelling of 244340137 in words is "two hundred forty-four million, three hundred forty thousand, one hundred thirty-seven".