213400033 has 16 divisors (see below), whose sum is σ = 266397696. Its totient is φ = 166073040.

The previous prime is 213400027. The next prime is 213400043. The reversal of 213400033 is 330004312.

213400033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-213400033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213400043) 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, 88360 + ... + 90742.

It is an arithmetic number, because the mean of its divisors is an integer number (16649856).

Almost surely, 2^213400033 is an apocalyptic number.

It is an amenable number.

213400033 is a deficient number, since it is larger than the sum of its proper divisors (52997663).

213400033 is a wasteful number, since it uses less digits than its factorization.

213400033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 213400033 is about 14608.2179953614. The cubic root of 213400033 is about 597.5828989277.

Adding to 213400033 its reverse (330004312), we get a palindrome (543404345).

The spelling of 213400033 in words is "two hundred thirteen million, four hundred thousand, thirty-three".