213422563 has 2 divisors, whose sum is σ = 213422564. Its totient is φ = 213422562.

The previous prime is 213422551. The next prime is 213422567. The reversal of 213422563 is 365224312.

213422563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213422563 is a prime.

It is not a weakly prime, because it can be changed into another prime (213422567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106711281 + 106711282.

It is an arithmetic number, because the mean of its divisors is an integer number (106711282).

Almost surely, 2^213422563 is an apocalyptic number.

213422563 is a deficient number, since it is larger than the sum of its proper divisors (1).

213422563 is an equidigital number, since it uses as much as digits as its factorization.

213422563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8640, while the sum is 28.

The square root of 213422563 is about 14608.9891162941. The cubic root of 213422563 is about 597.6039283980.

Adding to 213422563 its reverse (365224312), we get a palindrome (578646875).

The spelling of 213422563 in words is "two hundred thirteen million, four hundred twenty-two thousand, five hundred sixty-three".