213368163 has 4 divisors (see below), whose sum is σ = 284490888. Its totient is φ = 142245440.

The previous prime is 213368153. The next prime is 213368189. The reversal of 213368163 is 361863312.

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

It is a cyclic number.

It is not a de Polignac number, because 213368163 - 2⁸ = 213367907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213368153) 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, 35561358 + ... + 35561363.

It is an arithmetic number, because the mean of its divisors is an integer number (71122722).

Almost surely, 2^213368163 is an apocalyptic number.

213368163 is a deficient number, since it is larger than the sum of its proper divisors (71122725).

213368163 is an equidigital number, since it uses as much as digits as its factorization.

213368163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71122724.

The product of its digits is 15552, while the sum is 33.

The square root of 213368163 is about 14607.1271302745. The cubic root of 213368163 is about 597.5531489868.

It can be divided in two parts, 213368 and 163, that added together give a triangular number (213531 = T₆₅₃).

The spelling of 213368163 in words is "two hundred thirteen million, three hundred sixty-eight thousand, one hundred sixty-three".