213436223 has 16 divisors (see below), whose sum is σ = 286573056. Its totient is φ = 153519840.

The previous prime is 213436213. The next prime is 213436277. The reversal of 213436223 is 322634312.

It is a cyclic number.

It is not a de Polignac number, because 213436223 - 2⁸ = 213435967 is a prime.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 213436192 and 213436201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213436213) 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 15 ways as a sum of consecutive naturals, for example, 105611 + ... + 107612.

It is an arithmetic number, because the mean of its divisors is an integer number (17910816).

Almost surely, 2^213436223 is an apocalyptic number.

213436223 is a deficient number, since it is larger than the sum of its proper divisors (73136833).

213436223 is a wasteful number, since it uses less digits than its factorization.

213436223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213254.

The product of its digits is 5184, while the sum is 26.

The square root of 213436223 is about 14609.4566291837. The cubic root of 213436223 is about 597.6166779020.

The spelling of 213436223 in words is "two hundred thirteen million, four hundred thirty-six thousand, two hundred twenty-three".