1443111806137 has 2 divisors, whose sum is σ = 1443111806138. Its totient is φ = 1443111806136.

The previous prime is 1443111806093. The next prime is 1443111806189. The reversal of 1443111806137 is 7316081113441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1419765188521 + 23346617616 = 1191539^2 + 152796^2 .

It is a cyclic number.

It is not a de Polignac number, because 1443111806137 - 2¹⁹ = 1443111281849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1443111806137.

It is not a weakly prime, because it can be changed into another prime (1443111806237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721555903068 + 721555903069.

It is an arithmetic number, because the mean of its divisors is an integer number (721555903069).

Almost surely, 2^{1443111806137} is an apocalyptic number.

It is an amenable number.

1443111806137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443111806137 is an equidigital number, since it uses as much as digits as its factorization.

1443111806137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48384, while the sum is 40.

Adding to 1443111806137 its reverse (7316081113441), we get a palindrome (8759192919578).

The spelling of 1443111806137 in words is "one trillion, four hundred forty-three billion, one hundred eleven million, eight hundred six thousand, one hundred thirty-seven".