13163646 has 8 divisors (see below), whose sum is σ = 26327304. Its totient is φ = 4387880.

The previous prime is 13163641. The next prime is 13163653. The reversal of 13163646 is 64636131.

It is a sphenic number, since it is the product of 3 distinct primes.

13163646 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1096965 + ... + 1096976.

It is an arithmetic number, because the mean of its divisors is an integer number (3290913).

Almost surely, 2^13163646 is an apocalyptic number.

13163646 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

13163646 is a wasteful number, since it uses less digits than its factorization.

13163646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193946.

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

The square root of 13163646 is about 3628.1739208588. The cubic root of 13163646 is about 236.1159896180.

Adding to 13163646 its reverse (64636131), we get a palindrome (77799777).

The spelling of 13163646 in words is "thirteen million, one hundred sixty-three thousand, six hundred forty-six".