13043564 has 6 divisors (see below), whose sum is σ = 22826244. Its totient is φ = 6521780.

The previous prime is 13043561. The next prime is 13043579. The reversal of 13043564 is 46534031.

13043564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13043561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1630442 + ... + 1630449.

It is an arithmetic number, because the mean of its divisors is an integer number (3804374).

Almost surely, 2^13043564 is an apocalyptic number.

It is an amenable number.

13043564 is a deficient number, since it is larger than the sum of its proper divisors (9782680).

13043564 is a wasteful number, since it uses less digits than its factorization.

13043564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3260895 (or 3260893 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 13043564 is about 3611.5874625987. The cubic root of 13043564 is about 235.3958260438.

Adding to 13043564 its reverse (46534031), we get a palindrome (59577595).

The spelling of 13043564 in words is "thirteen million, forty-three thousand, five hundred sixty-four".