213494564 has 24 divisors (see below), whose sum is σ = 393775200. Its totient is φ = 101001600.

The previous prime is 213494537. The next prime is 213494569. The reversal of 213494564 is 465494312.

213494564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (213494569) 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, 90107 + ... + 92445.

It is an arithmetic number, because the mean of its divisors is an integer number (16407300).

Almost surely, 2^213494564 is an apocalyptic number.

It is an amenable number.

213494564 is a deficient number, since it is larger than the sum of its proper divisors (180280636).

213494564 is a wasteful number, since it uses less digits than its factorization.

213494564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3563 (or 3561 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 213494564 is about 14611.4531789278. The cubic root of 213494564 is about 597.6711241091.

The spelling of 213494564 in words is "two hundred thirteen million, four hundred ninety-four thousand, five hundred sixty-four".