213264166 has 4 divisors (see below), whose sum is σ = 319896252. Its totient is φ = 106632082.

The previous prime is 213264143. The next prime is 213264169. The reversal of 213264166 is 661462312.

213264166 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213264169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53316040 + ... + 53316043.

It is an arithmetic number, because the mean of its divisors is an integer number (79974063).

Almost surely, 2^213264166 is an apocalyptic number.

213264166 is a deficient number, since it is larger than the sum of its proper divisors (106632086).

213264166 is a wasteful number, since it uses less digits than its factorization.

213264166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106632085.

The product of its digits is 10368, while the sum is 31.

The square root of 213264166 is about 14603.5668930573. The cubic root of 213264166 is about 597.4560494740.

The spelling of 213264166 in words is "two hundred thirteen million, two hundred sixty-four thousand, one hundred sixty-six".