13145564 has 6 divisors (see below), whose sum is σ = 23004744. Its totient is φ = 6572780.

The previous prime is 13145557. The next prime is 13145597. The reversal of 13145564 is 46554131.

It is a happy number.

13145564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1643192 + ... + 1643199.

It is an arithmetic number, because the mean of its divisors is an integer number (3834124).

Almost surely, 2^13145564 is an apocalyptic number.

It is an amenable number.

13145564 is a deficient number, since it is larger than the sum of its proper divisors (9859180).

13145564 is a wasteful number, since it uses less digits than its factorization.

13145564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3286395 (or 3286393 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 13145564 is about 3625.6811773789. The cubic root of 13145564 is about 236.0078279506.

Adding to 13145564 its reverse (46554131), we get a palindrome (59699695).

The spelling of 13145564 in words is "thirteen million, one hundred forty-five thousand, five hundred sixty-four".