1244024137 has 2 divisors, whose sum is σ = 1244024138. Its totient is φ = 1244024136.

The previous prime is 1244024129. The next prime is 1244024219. The reversal of 1244024137 is 7314204421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1232080201 + 11943936 = 35101^2 + 3456^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244024137 - 2³ = 1244024129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1244024237) 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, 622012068 + 622012069.

It is an arithmetic number, because the mean of its divisors is an integer number (622012069).

Almost surely, 2^1244024137 is an apocalyptic number.

It is an amenable number.

1244024137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1244024137 is an equidigital number, since it uses as much as digits as its factorization.

1244024137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 1244024137 is about 35270.7263463626. The cubic root of 1244024137 is about 1075.4979879869.

Adding to 1244024137 its reverse (7314204421), we get a palindrome (8558228558).

The spelling of 1244024137 in words is "one billion, two hundred forty-four million, twenty-four thousand, one hundred thirty-seven".