13135664 has 20 divisors (see below), whose sum is σ = 25531104. Its totient is φ = 6547008.

The previous prime is 13135657. The next prime is 13135673. The reversal of 13135664 is 46653131.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4754 + ... + 6990.

Almost surely, 2^13135664 is an apocalyptic number.

It is an amenable number.

13135664 is a deficient number, since it is larger than the sum of its proper divisors (12395440).

13135664 is a wasteful number, since it uses less digits than its factorization.

13135664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2612 (or 2606 counting only the distinct ones).

The product of its digits is 6480, while the sum is 29.

The square root of 13135664 is about 3624.3156595418. The cubic root of 13135664 is about 235.9485667864.

Adding to 13135664 its reverse (46653131), we get a palindrome (59788795).

The spelling of 13135664 in words is "thirteen million, one hundred thirty-five thousand, six hundred sixty-four".