213734223 has 12 divisors (see below), whose sum is σ = 308945520. Its totient is φ = 142388736.

The previous prime is 213734207. The next prime is 213734267. The reversal of 213734223 is 322437312.

It is not a de Polignac number, because 213734223 - 2⁴ = 213734207 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213734273) 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 11 ways as a sum of consecutive naturals, for example, 6415 + ... + 21647.

It is an arithmetic number, because the mean of its divisors is an integer number (25745460).

Almost surely, 2^213734223 is an apocalyptic number.

213734223 is a deficient number, since it is larger than the sum of its proper divisors (95211297).

213734223 is a wasteful number, since it uses less digits than its factorization.

213734223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16798 (or 16795 counting only the distinct ones).

The product of its digits is 6048, while the sum is 27.

The square root of 213734223 is about 14619.6519452414. The cubic root of 213734223 is about 597.8946796843.

The spelling of 213734223 in words is "two hundred thirteen million, seven hundred thirty-four thousand, two hundred twenty-three".