1444023169 has 2 divisors, whose sum is σ = 1444023170. Its totient is φ = 1444023168.

The previous prime is 1444023149. The next prime is 1444023173. The reversal of 1444023169 is 9613204441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1079976769 + 364046400 = 32863^2 + 19080^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444023169 - 2¹³ = 1444014977 is a prime.

It is a super-2 number, since 2×1444023169² = 4170405825217605122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1444023109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 722011584 + 722011585.

It is an arithmetic number, because the mean of its divisors is an integer number (722011585).

Almost surely, 2^1444023169 is an apocalyptic number.

It is an amenable number.

1444023169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1444023169 is an equidigital number, since it uses as much as digits as its factorization.

1444023169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 34.

The square root of 1444023169 is about 38000.3048540403. The cubic root of 1444023169 is about 1130.2939087212.

The spelling of 1444023169 in words is "one billion, four hundred forty-four million, twenty-three thousand, one hundred sixty-nine".