1444313141 has 4 divisors (see below), whose sum is σ = 1445136000. Its totient is φ = 1443490284.

The previous prime is 1444313137. The next prime is 1444313161. The reversal of 1444313141 is 1413134441.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1413134441 = 773 ⋅1828117.

It is a cyclic number.

It is not a de Polignac number, because 1444313141 - 2² = 1444313137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1444313141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444313161) 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, 408791 + ... + 412308.

It is an arithmetic number, because the mean of its divisors is an integer number (361284000).

Almost surely, 2^1444313141 is an apocalyptic number.

It is an amenable number.

1444313141 is a deficient number, since it is larger than the sum of its proper divisors (822859).

1444313141 is an equidigital number, since it uses as much as digits as its factorization.

1444313141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822858.

The product of its digits is 2304, while the sum is 26.

The square root of 1444313141 is about 38004.1200529627. The cubic root of 1444313141 is about 1130.3695611660.

Adding to 1444313141 its reverse (1413134441), we get a palindrome (2857447582).

The spelling of 1444313141 in words is "one billion, four hundred forty-four million, three hundred thirteen thousand, one hundred forty-one".