1345543443 has 24 divisors (see below), whose sum is σ = 1998526400. Its totient is φ = 871720704.

The previous prime is 1345543427. The next prime is 1345543469. The reversal of 1345543443 is 3443455431.

1345543443 is a `hidden beast` number, since 1 + 34 + 554 + 34 + 43 = 666.

It is not a de Polignac number, because 1345543443 - 2⁴ = 1345543427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1345543398 and 1345543407.

It is not an unprimeable number, because it can be changed into a prime (1345543483) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 344043 + ... + 347931.

Almost surely, 2^1345543443 is an apocalyptic number.

1345543443 is a deficient number, since it is larger than the sum of its proper divisors (652982957).

1345543443 is a wasteful number, since it uses less digits than its factorization.

1345543443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971 (or 4968 counting only the distinct ones).

The product of its digits is 172800, while the sum is 36.

The square root of 1345543443 is about 36681.6499492594. The cubic root of 1345543443 is about 1103.9919536079.

Adding to 1345543443 its reverse (3443455431), we get a palindrome (4788998874).

The spelling of 1345543443 in words is "one billion, three hundred forty-five million, five hundred forty-three thousand, four hundred forty-three".