213443152 has 30 divisors (see below), whose sum is σ = 445797422. Its totient is φ = 98414976.

The previous prime is 213443149. The next prime is 213443183. The reversal of 213443152 is 251344312.

It can be written as a sum of positive squares in 3 ways, for example, as 57093136 + 156350016 = 7556^2 + 12504^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 210198 + ... + 211210.

Almost surely, 2^213443152 is an apocalyptic number.

It is an amenable number.

213443152 is an abundant number, since it is smaller than the sum of its proper divisors (232354270).

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

213443152 is an equidigital number, since it uses as much as digits as its factorization.

213443152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2047 (or 1028 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 213443152 is about 14609.6937681801. The cubic root of 213443152 is about 597.6231448474.

Adding to 213443152 its reverse (251344312), we get a palindrome (464787464).

The spelling of 213443152 in words is "two hundred thirteen million, four hundred forty-three thousand, one hundred fifty-two".