1444242145 has 16 divisors (see below), whose sum is σ = 1745377920. Its totient is φ = 1147233024.

The previous prime is 1444242143. The next prime is 1444242181. The reversal of 1444242145 is 5412424441.

It is a cyclic number.

It is not a de Polignac number, because 1444242145 - 2¹ = 1444242143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1444242143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 441526 + ... + 444784.

It is an arithmetic number, because the mean of its divisors is an integer number (109086120).

Almost surely, 2^1444242145 is an apocalyptic number.

It is an amenable number.

1444242145 is a deficient number, since it is larger than the sum of its proper divisors (301135775).

1444242145 is a wasteful number, since it uses less digits than its factorization.

1444242145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3864.

The product of its digits is 20480, while the sum is 31.

The square root of 1444242145 is about 38003.1859848618. The cubic root of 1444242145 is about 1130.3510395518.

Adding to 1444242145 its reverse (5412424441), we get a palindrome (6856666586).

The spelling of 1444242145 in words is "one billion, four hundred forty-four million, two hundred forty-two thousand, one hundred forty-five".