243552132 has 72 divisors (see below), whose sum is σ = 656038656. Its totient is φ = 75919104.

The previous prime is 243552079. The next prime is 243552137. The reversal of 243552132 is 231255342.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 243552096 and 243552105.

It is not an unprimeable number, because it can be changed into a prime (243552137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101013 + ... + 103395.

It is an arithmetic number, because the mean of its divisors is an integer number (9111648).

Almost surely, 2^243552132 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 243552132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (328019328).

243552132 is an abundant number, since it is smaller than the sum of its proper divisors (412486524).

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

243552132 is a wasteful number, since it uses less digits than its factorization.

243552132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2577 (or 2572 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 243552132 is about 15606.1568619568. The cubic root of 243552132 is about 624.4974152687.

The spelling of 243552132 in words is "two hundred forty-three million, five hundred fifty-two thousand, one hundred thirty-two".