213489085 has 8 divisors (see below), whose sum is σ = 257884416. Its totient is φ = 169659600.

The previous prime is 213489083. The next prime is 213489103. The reversal of 213489085 is 580984312.

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

It is not a de Polignac number, because 213489085 - 2¹ = 213489083 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 (213489083) 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 7 ways as a sum of consecutive naturals, for example, 140629 + ... + 142138.

It is an arithmetic number, because the mean of its divisors is an integer number (32235552).

Almost surely, 2^213489085 is an apocalyptic number.

It is an amenable number.

213489085 is a deficient number, since it is larger than the sum of its proper divisors (44395331).

213489085 is a wasteful number, since it uses less digits than its factorization.

213489085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282923.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 213489085 is about 14611.2656878177. The cubic root of 213489085 is about 597.6660113043. Note that the first 3 decimals are identical.

It can be divided in two parts, 2134 and 89085, that added together give a palindrome (91219).

The spelling of 213489085 in words is "two hundred thirteen million, four hundred eighty-nine thousand, eighty-five".