1444413013 has 4 divisors (see below), whose sum is σ = 1444778028. Its totient is φ = 1444048000.

The previous prime is 1444412989. The next prime is 1444413017. The reversal of 1444413013 is 3103144441.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103144441 = 19469 ⋅159389.

It can be written as a sum of positive squares in 2 ways, for example, as 28922884 + 1415490129 = 5378^2 + 37623^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1444413013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444413017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176506 + ... + 184507.

It is an arithmetic number, because the mean of its divisors is an integer number (361194507).

Almost surely, 2^1444413013 is an apocalyptic number.

It is an amenable number.

1444413013 is a deficient number, since it is larger than the sum of its proper divisors (365015).

1444413013 is an equidigital number, since it uses as much as digits as its factorization.

1444413013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365014.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 1444413013 is about 38005.4339930489. The cubic root of 1444413013 is about 1130.3956149960.

Adding to 1444413013 its reverse (3103144441), we get a palindrome (4547557454).

The spelling of 1444413013 in words is "one billion, four hundred forty-four million, four hundred thirteen thousand, thirteen".