213632159 has 4 divisors (see below), whose sum is σ = 230065416. Its totient is φ = 197198904.

The previous prime is 213632141. The next prime is 213632171. The reversal of 213632159 is 951236312.

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

It is a cyclic number.

It is not a de Polignac number, because 213632159 - 2⁸ = 213631903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213632189) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 8216609 + ... + 8216634.

It is an arithmetic number, because the mean of its divisors is an integer number (57516354).

Almost surely, 2^213632159 is an apocalyptic number.

213632159 is a deficient number, since it is larger than the sum of its proper divisors (16433257).

213632159 is a wasteful number, since it uses less digits than its factorization.

213632159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16433256.

The product of its digits is 9720, while the sum is 32.

The square root of 213632159 is about 14616.1608844457. The cubic root of 213632159 is about 597.7994941188.

The spelling of 213632159 in words is "two hundred thirteen million, six hundred thirty-two thousand, one hundred fifty-nine".