1444205113 has 8 divisors (see below), whose sum is σ = 1557827208. Its totient is φ = 1330944384.

The previous prime is 1444205071. The next prime is 1444205123. The reversal of 1444205113 is 3115024441.

It can be written as a sum of positive squares in 4 ways, for example, as 17405584 + 1426799529 = 4172^2 + 37773^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1444205113 - 2¹³ = 1444196921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444205123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82006 + ... + 98047.

It is an arithmetic number, because the mean of its divisors is an integer number (194728401).

Almost surely, 2^1444205113 is an apocalyptic number.

1444205113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1444205113 is a deficient number, since it is larger than the sum of its proper divisors (113622095).

1444205113 is a wasteful number, since it uses less digits than its factorization.

1444205113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180683.

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1444205113 is about 38002.6987594302. The cubic root of 1444205113 is about 1130.3413783101.

Adding to 1444205113 its reverse (3115024441), we get a palindrome (4559229554).

The spelling of 1444205113 in words is "one billion, four hundred forty-four million, two hundred five thousand, one hundred thirteen".