243315132 has 24 divisors (see below), whose sum is σ = 575514576. Its totient is φ = 79993728.

The previous prime is 243315119. The next prime is 243315157. The reversal of 243315132 is 231513342.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138003 + ... + 139754.

It is an arithmetic number, because the mean of its divisors is an integer number (23979774).

Almost surely, 2^243315132 is an apocalyptic number.

It is an amenable number.

243315132 is an abundant number, since it is smaller than the sum of its proper divisors (332199444).

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

243315132 is a wasteful number, since it uses less digits than its factorization.

243315132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277837 (or 277835 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 243315132 is about 15598.5618567867. The cubic root of 243315132 is about 624.2947838783.

Adding to 243315132 its reverse (231513342), we get a palindrome (474828474).

The spelling of 243315132 in words is "two hundred forty-three million, three hundred fifteen thousand, one hundred thirty-two".