213443132 has 48 divisors (see below), whose sum is σ = 447068160. Its totient is φ = 87229632.

The previous prime is 213443107. The next prime is 213443149. The reversal of 213443132 is 231344312.

213443132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213443098 and 213443107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65813 + ... + 68979.

It is an arithmetic number, because the mean of its divisors is an integer number (9313920).

Almost surely, 2^213443132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213443132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223534080).

213443132 is an abundant number, since it is smaller than the sum of its proper divisors (233625028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213443132 is a wasteful number, since it uses less digits than its factorization.

213443132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3290 (or 3288 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 213443132 is about 14609.6930837030. The cubic root of 213443132 is about 597.6231261812.

Adding to 213443132 its reverse (231344312), we get a palindrome (444787444).

The spelling of 213443132 in words is "two hundred thirteen million, four hundred forty-three thousand, one hundred thirty-two".