1443211345 has 8 divisors (see below), whose sum is σ = 1833727464. Its totient is φ = 1086653184.

The previous prime is 1443211333. The next prime is 1443211349. The reversal of 1443211345 is 5431123441.

It can be written as a sum of positive squares in 4 ways, for example, as 506790144 + 936421201 = 22512^2 + 30601^2 .

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 1443211345 - 2¹⁵ = 1443178577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1443211349) 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, 8489394 + ... + 8489563.

It is an arithmetic number, because the mean of its divisors is an integer number (229215933).

Almost surely, 2^1443211345 is an apocalyptic number.

It is an amenable number.

1443211345 is a deficient number, since it is larger than the sum of its proper divisors (390516119).

1443211345 is a wasteful number, since it uses less digits than its factorization.

1443211345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16978979.

The product of its digits is 5760, while the sum is 28.

The square root of 1443211345 is about 37989.6215432584. The cubic root of 1443211345 is about 1130.0820534564.

Adding to 1443211345 its reverse (5431123441), we get a palindrome (6874334786).

The spelling of 1443211345 in words is "one billion, four hundred forty-three million, two hundred eleven thousand, three hundred forty-five".