1444504145 has 16 divisors (see below), whose sum is σ = 1981752960. Its totient is φ = 990157824.

The previous prime is 1444504141. The next prime is 1444504163. The reversal of 1444504145 is 5414054441.

It is a cyclic number.

It is not a de Polignac number, because 1444504145 - 2² = 1444504141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1444504141) 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 in 15 ways as a sum of consecutive naturals, for example, 121841 + ... + 133169.

It is an arithmetic number, because the mean of its divisors is an integer number (123859560).

Almost surely, 2^1444504145 is an apocalyptic number.

It is an amenable number.

1444504145 is a deficient number, since it is larger than the sum of its proper divisors (537248815).

1444504145 is a wasteful number, since it uses less digits than its factorization.

1444504145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14984.

The product of its (nonzero) digits is 25600, while the sum is 32.

The square root of 1444504145 is about 38006.6329079544. The cubic root of 1444504145 is about 1130.4193877548.

Adding to 1444504145 its reverse (5414054441), we get a palindrome (6858558586).

The spelling of 1444504145 in words is "one billion, four hundred forty-four million, five hundred four thousand, one hundred forty-five".