213234513 has 16 divisors (see below), whose sum is σ = 288893952. Its totient is φ = 139874000.

The previous prime is 213234491. The next prime is 213234517. The reversal of 213234513 is 315432312.

It is a cyclic number.

It is not a de Polignac number, because 213234513 - 2⁸ = 213234257 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (213234517) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206308 + ... + 207338.

It is an arithmetic number, because the mean of its divisors is an integer number (18055872).

Almost surely, 2^213234513 is an apocalyptic number.

It is an amenable number.

213234513 is a deficient number, since it is larger than the sum of its proper divisors (75659439).

213234513 is a wasteful number, since it uses less digits than its factorization.

213234513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076.

The product of its digits is 2160, while the sum is 24.

The square root of 213234513 is about 14602.5515921020. The cubic root of 213234513 is about 597.4283573934.

Adding to 213234513 its reverse (315432312), we get a palindrome (528666825).

The spelling of 213234513 in words is "two hundred thirteen million, two hundred thirty-four thousand, five hundred thirteen".