13163285 has 4 divisors (see below), whose sum is σ = 15795948. Its totient is φ = 10530624.

The previous prime is 13163281. The next prime is 13163309. The reversal of 13163285 is 58236131.

13163285 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2775556 + 10387729 = 1666^2 + 3223^2 .

It is a cyclic number.

It is not a de Polignac number, because 13163285 - 2² = 13163281 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13163281) 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, 1316324 + ... + 1316333.

It is an arithmetic number, because the mean of its divisors is an integer number (3948987).

Almost surely, 2^13163285 is an apocalyptic number.

It is an amenable number.

13163285 is a deficient number, since it is larger than the sum of its proper divisors (2632663).

13163285 is an equidigital number, since it uses as much as digits as its factorization.

13163285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2632662.

The product of its digits is 4320, while the sum is 29.

The square root of 13163285 is about 3628.1241709732. The cubic root of 13163285 is about 236.1138311823.

The spelling of 13163285 in words is "thirteen million, one hundred sixty-three thousand, two hundred eighty-five".