13664136 has 32 divisors (see below), whose sum is σ = 34344000. Its totient is φ = 4530240.

The previous prime is 13664129. The next prime is 13664143. The reversal of 13664136 is 63146631.

13664136 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13664129) and next prime (13664143).

It is a super-2 number, since 2×13664136² = 373417225252992, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3346 + ... + 6206.

It is an arithmetic number, because the mean of its divisors is an integer number (1073250).

Almost surely, 2^13664136 is an apocalyptic number.

It is an amenable number.

13664136 is an abundant number, since it is smaller than the sum of its proper divisors (20679864).

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

13664136 is a wasteful number, since it uses less digits than its factorization.

13664136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3069 (or 3065 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 13664136 is about 3696.5032124969. The cubic root of 13664136 is about 239.0712718470.

The spelling of 13664136 in words is "thirteen million, six hundred sixty-four thousand, one hundred thirty-six".