13163685 has 16 divisors (see below), whose sum is σ = 21742080. Its totient is φ = 6793920.

The previous prime is 13163681. The next prime is 13163687. The reversal of 13163685 is 58636131.

13163685 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13163685 - 2² = 13163681 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163681) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13690 + ... + 14619.

It is an arithmetic number, because the mean of its divisors is an integer number (1358880).

Almost surely, 2^13163685 is an apocalyptic number.

13163685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13163685 is a deficient number, since it is larger than the sum of its proper divisors (8578395).

13163685 is a wasteful number, since it uses less digits than its factorization.

13163685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28348.

The product of its digits is 12960, while the sum is 33.

The square root of 13163685 is about 3628.1792954594. The cubic root of 13163685 is about 236.1162227985.

The spelling of 13163685 in words is "thirteen million, one hundred sixty-three thousand, six hundred eighty-five".