1443989141 has 16 divisors (see below), whose sum is σ = 1708992000. Its totient is φ = 1193756928.

The previous prime is 1443989123. The next prime is 1443989143. The reversal of 1443989141 is 1419893441.

It is not a de Polignac number, because 1443989141 - 2⁶ = 1443989077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1443989092 and 1443989101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1443989143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220685 + ... + 227133.

It is an arithmetic number, because the mean of its divisors is an integer number (106812000).

Almost surely, 2^1443989141 is an apocalyptic number.

It is an amenable number.

1443989141 is a deficient number, since it is larger than the sum of its proper divisors (265002859).

1443989141 is a wasteful number, since it uses less digits than its factorization.

1443989141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7588.

The product of its digits is 124416, while the sum is 44.

The square root of 1443989141 is about 37999.8571181524. The cubic root of 1443989141 is about 1130.2850302988.

The spelling of 1443989141 in words is "one billion, four hundred forty-three million, nine hundred eighty-nine thousand, one hundred forty-one".