213553331 has 8 divisors (see below), whose sum is σ = 225086400. Its totient is φ = 202049640.

The previous prime is 213553313. The next prime is 213553387. The reversal of 213553331 is 133355312.

213553331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213553331 - 2⁶ = 213553267 is a prime.

It is a super-2 number, since 2×213553331² = 91210050362391122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 213553331.

It is not an unprimeable number, because it can be changed into a prime (213553231) 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, 8480 + ... + 22338.

It is an arithmetic number, because the mean of its divisors is an integer number (28135800).

Almost surely, 2^213553331 is an apocalyptic number.

213553331 is a deficient number, since it is larger than the sum of its proper divisors (11533069).

213553331 is a wasteful number, since it uses less digits than its factorization.

213553331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14689.

The product of its digits is 4050, while the sum is 26.

The square root of 213553331 is about 14613.4640315019. The cubic root of 213553331 is about 597.7259578498.

The spelling of 213553331 in words is "two hundred thirteen million, five hundred fifty-three thousand, three hundred thirty-one".