243212532 has 24 divisors (see below), whose sum is σ = 567823872. Its totient is φ = 81024000.

The previous prime is 243212527. The next prime is 243212537. The reversal of 243212532 is 235212342.

It is an interprime number because it is at equal distance from previous prime (243212527) and next prime (243212537).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243212537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20532 + ... + 30132.

It is an arithmetic number, because the mean of its divisors is an integer number (23659328).

Almost surely, 2^243212532 is an apocalyptic number.

It is an amenable number.

243212532 is an abundant number, since it is smaller than the sum of its proper divisors (324611340).

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

243212532 is a wasteful number, since it uses less digits than its factorization.

243212532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11719 (or 11717 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 243212532 is about 15595.2727452905. The cubic root of 243212532 is about 624.2070216287.

Adding to 243212532 its reverse (235212342), we get a palindrome (478424874).

The spelling of 243212532 in words is "two hundred forty-three million, two hundred twelve thousand, five hundred thirty-two".