213282645 has 16 divisors (see below), whose sum is σ = 341433792. Its totient is φ = 113690240.

The previous prime is 213282637. The next prime is 213282673. The reversal of 213282645 is 546282312.

It is not a de Polignac number, because 213282645 - 2³ = 213282637 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50329 + ... + 54401.

It is an arithmetic number, because the mean of its divisors is an integer number (21339612).

Almost surely, 2^213282645 is an apocalyptic number.

It is an amenable number.

213282645 is a deficient number, since it is larger than the sum of its proper divisors (128151147).

213282645 is a wasteful number, since it uses less digits than its factorization.

213282645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7572.

The product of its digits is 23040, while the sum is 33.

The square root of 213282645 is about 14604.1995672478. The cubic root of 213282645 is about 597.4733051804.

The spelling of 213282645 in words is "two hundred thirteen million, two hundred eighty-two thousand, six hundred forty-five".