1444105225 has 6 divisors (see below), whose sum is σ = 1790690510. Its totient is φ = 1155284160.

The previous prime is 1444105213. The next prime is 1444105237. The reversal of 1444105225 is 5225014441.

It is an interprime number because it is at equal distance from previous prime (1444105213) and next prime (1444105237).

It can be written as a sum of positive squares in 3 ways, for example, as 403849216 + 1040256009 = 20096^2 + 32253^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1444105225 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1444105193 and 1444105202.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28882080 + ... + 28882129.

Almost surely, 2^1444105225 is an apocalyptic number.

It is an amenable number.

1444105225 is a deficient number, since it is larger than the sum of its proper divisors (346585285).

1444105225 is an equidigital number, since it uses as much as digits as its factorization.

1444105225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57764219 (or 57764214 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 1444105225 is about 38001.3845142516. The cubic root of 1444105225 is about 1130.3153178053.

Adding to 1444105225 its reverse (5225014441), we get a palindrome (6669119666).

The spelling of 1444105225 in words is "one billion, four hundred forty-four million, one hundred five thousand, two hundred twenty-five".