1444133401 has 4 divisors (see below), whose sum is σ = 1444702500. Its totient is φ = 1443564304.

The previous prime is 1444133363. The next prime is 1444133423. The reversal of 1444133401 is 1043314441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 967147801 + 476985600 = 31099^2 + 21840^2 .

It is a cyclic number.

It is not a de Polignac number, because 1444133401 - 2¹⁵ = 1444100633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1444133441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280726 + ... + 285823.

It is an arithmetic number, because the mean of its divisors is an integer number (361175625).

Almost surely, 2^1444133401 is an apocalyptic number.

It is an amenable number.

1444133401 is a deficient number, since it is larger than the sum of its proper divisors (569099).

1444133401 is an equidigital number, since it uses as much as digits as its factorization.

1444133401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569098.

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

The square root of 1444133401 is about 38001.7552357783. The cubic root of 1444133401 is about 1130.3226689680.

Adding to 1444133401 its reverse (1043314441), we get a palindrome (2487447842).

The spelling of 1444133401 in words is "one billion, four hundred forty-four million, one hundred thirty-three thousand, four hundred one".