1345144544 has 24 divisors (see below), whose sum is σ = 2649102120. Its totient is φ = 672356736.

The previous prime is 1345144513. The next prime is 1345144553. The reversal of 1345144544 is 4454415431.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152807 + ... + 161369.

It is an arithmetic number, because the mean of its divisors is an integer number (110379255).

Almost surely, 2^1345144544 is an apocalyptic number.

It is an amenable number.

1345144544 is a deficient number, since it is larger than the sum of its proper divisors (1303957576).

1345144544 is an equidigital number, since it uses as much as digits as its factorization.

1345144544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13482 (or 13474 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

The square root of 1345144544 is about 36676.2122362711. The cubic root of 1345144544 is about 1103.8828465616.

Adding to 1345144544 its reverse (4454415431), we get a palindrome (5799559975).

The spelling of 1345144544 in words is "one billion, three hundred forty-five million, one hundred forty-four thousand, five hundred forty-four".