213025233 has 4 divisors (see below), whose sum is σ = 284033648. Its totient is φ = 142016820.

The previous prime is 213025229. The next prime is 213025247. The reversal of 213025233 is 332520312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 213025233 - 2² = 213025229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213025133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35504203 + ... + 35504208.

It is an arithmetic number, because the mean of its divisors is an integer number (71008412).

Almost surely, 2^213025233 is an apocalyptic number.

It is an amenable number.

213025233 is a deficient number, since it is larger than the sum of its proper divisors (71008415).

213025233 is an equidigital number, since it uses as much as digits as its factorization.

213025233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71008414.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 213025233 is about 14595.3839620614. The cubic root of 213025233 is about 597.2328438078.

Adding to 213025233 its reverse (332520312), we get a palindrome (545545545).

The spelling of 213025233 in words is "two hundred thirteen million, twenty-five thousand, two hundred thirty-three".