243011252 has 48 divisors (see below), whose sum is σ = 472953600. Its totient is φ = 108336000.

The previous prime is 243011221. The next prime is 243011267. The reversal of 243011252 is 252110342.

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, 661973 + ... + 662339.

It is an arithmetic number, because the mean of its divisors is an integer number (9853200).

Almost surely, 2^243011252 is an apocalyptic number.

243011252 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243011252 is a deficient number, since it is larger than the sum of its proper divisors (229942348).

243011252 is a wasteful number, since it uses less digits than its factorization.

243011252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 630 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 243011252 is about 15588.8181720103. The cubic root of 243011252 is about 624.0347784966.

Adding to 243011252 its reverse (252110342), we get a palindrome (495121594).

The spelling of 243011252 in words is "two hundred forty-three million, eleven thousand, two hundred fifty-two".