213022163 has 2 divisors, whose sum is σ = 213022164. Its totient is φ = 213022162.

The previous prime is 213022097. The next prime is 213022169. The reversal of 213022163 is 361220312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213022163 is a prime.

It is not a weakly prime, because it can be changed into another prime (213022169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106511081 + 106511082.

It is an arithmetic number, because the mean of its divisors is an integer number (106511082).

Almost surely, 2^213022163 is an apocalyptic number.

213022163 is a deficient number, since it is larger than the sum of its proper divisors (1).

213022163 is an equidigital number, since it uses as much as digits as its factorization.

213022163 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 213022163 is about 14595.2787914449. The cubic root of 213022163 is about 597.2299747993.

Adding to 213022163 its reverse (361220312), we get a palindrome (574242475).

The spelling of 213022163 in words is "two hundred thirteen million, twenty-two thousand, one hundred sixty-three".