213217163 has 8 divisors (see below), whose sum is σ = 220532736. Its totient is φ = 205929000.

The previous prime is 213217139. The next prime is 213217171. The reversal of 213217163 is 361712312.

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

It is a cyclic number.

It is not a de Polignac number, because 213217163 - 2⁶ = 213217099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213217663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9638 + ... + 22788.

It is an arithmetic number, because the mean of its divisors is an integer number (27566592).

Almost surely, 2^213217163 is an apocalyptic number.

213217163 is a deficient number, since it is larger than the sum of its proper divisors (7315573).

213217163 is a wasteful number, since it uses less digits than its factorization.

213217163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13705.

The product of its digits is 1512, while the sum is 26.

The square root of 213217163 is about 14601.9575057593. The cubic root of 213217163 is about 597.4121535388.

Adding to 213217163 its reverse (361712312), we get a palindrome (574929475).

The spelling of 213217163 in words is "two hundred thirteen million, two hundred seventeen thousand, one hundred sixty-three".