13620163 has 6 divisors (see below), whose sum is σ = 14238644. Its totient is φ = 13027476.

The previous prime is 13620151. The next prime is 13620197. The reversal of 13620163 is 36102631.

It is not a de Polignac number, because 13620163 - 2⁹ = 13619651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13620133) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12345 + ... + 13402.

Almost surely, 2^13620163 is an apocalyptic number.

13620163 is a deficient number, since it is larger than the sum of its proper divisors (618481).

13620163 is an equidigital number, since it uses as much as digits as its factorization.

13620163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25793 (or 25770 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 13620163 is about 3690.5505009416. The cubic root of 13620163 is about 238.8145419103.

Adding to 13620163 its reverse (36102631), we get a palindrome (49722794).

The spelling of 13620163 in words is "thirteen million, six hundred twenty thousand, one hundred sixty-three".