1444313137 has 2 divisors, whose sum is σ = 1444313138. Its totient is φ = 1444313136.

The previous prime is 1444313119. The next prime is 1444313161. The reversal of 1444313137 is 7313134441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1331082256 + 113230881 = 36484^2 + 10641^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444313137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444313099 and 1444313108.

It is not a weakly prime, because it can be changed into another prime (1444319137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722156568 + 722156569.

It is an arithmetic number, because the mean of its divisors is an integer number (722156569).

Almost surely, 2^1444313137 is an apocalyptic number.

It is an amenable number.

1444313137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444313137 is an equidigital number, since it uses as much as digits as its factorization.

1444313137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 31.

The square root of 1444313137 is about 38004.1200003368. The cubic root of 1444313137 is about 1130.3695601225.

Adding to 1444313137 its reverse (7313134441), we get a palindrome (8757447578).

The spelling of 1444313137 in words is "one billion, four hundred forty-four million, three hundred thirteen thousand, one hundred thirty-seven".