213494565 has 8 divisors (see below), whose sum is σ = 341591328. Its totient is φ = 113863760.

The previous prime is 213494537. The next prime is 213494569. The reversal of 213494565 is 565494312.

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

It is not a de Polignac number, because 213494565 - 2⁹ = 213494053 is a prime.

It is a Curzon number.

It is a congruent number.

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, 7116471 + ... + 7116500.

It is an arithmetic number, because the mean of its divisors is an integer number (42698916).

Almost surely, 2^213494565 is an apocalyptic number.

It is an amenable number.

213494565 is a deficient number, since it is larger than the sum of its proper divisors (128096763).

213494565 is a wasteful number, since it uses less digits than its factorization.

213494565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14232979.

The product of its digits is 129600, while the sum is 39.

The square root of 213494565 is about 14611.4532131476. The cubic root of 213494565 is about 597.6711250422.

The spelling of 213494565 in words is "two hundred thirteen million, four hundred ninety-four thousand, five hundred sixty-five".