213033253 has 8 divisors (see below), whose sum is σ = 218669976. Its totient is φ = 207417600.

The previous prime is 213033251. The next prime is 213033259. The reversal of 213033253 is 352330312.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 9628609 + 203404644 = 3103^2 + 14262^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213033253 - 2¹ = 213033251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213033251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16375 + ... + 26347.

It is an arithmetic number, because the mean of its divisors is an integer number (27333747).

Almost surely, 2^213033253 is an apocalyptic number.

It is an amenable number.

213033253 is a deficient number, since it is larger than the sum of its proper divisors (5636723).

213033253 is an equidigital number, since it uses as much as digits as its factorization.

213033253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10535.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 213033253 is about 14595.6587038749. The cubic root of 213033253 is about 597.2403386121.

Adding to 213033253 its reverse (352330312), we get a palindrome (565363565).

The spelling of 213033253 in words is "two hundred thirteen million, thirty-three thousand, two hundred fifty-three".