13045656 has 32 divisors (see below), whose sum is σ = 35123760. Its totient is φ = 4013952.

The previous prime is 13045631. The next prime is 13045657. The reversal of 13045656 is 65654031.

13045656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13045657) 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, 20595 + ... + 21218.

Almost surely, 2^13045656 is an apocalyptic number.

It is an amenable number.

13045656 is an abundant number, since it is smaller than the sum of its proper divisors (22078104).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13045656 is a wasteful number, since it uses less digits than its factorization.

13045656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41835 (or 41831 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 13045656 is about 3611.8770743202. The cubic root of 13045656 is about 235.4084100723.

Adding to 13045656 its reverse (65654031), we get a palindrome (78699687).

The spelling of 13045656 in words is "thirteen million, forty-five thousand, six hundred fifty-six".