243134200 has 48 divisors (see below), whose sum is σ = 568635480. Its totient is φ = 96677760.

The previous prime is 243134191. The next prime is 243134233. The reversal of 243134200 is 2431342.

It is a super-3 number, since 3×243134200³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31087 + ... + 38113.

Almost surely, 2^243134200 is an apocalyptic number.

243134200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243134200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284317740).

243134200 is an abundant number, since it is smaller than the sum of its proper divisors (325501280).

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

243134200 is a wasteful number, since it uses less digits than its factorization.

243134200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7216 (or 7207 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 243134200 is about 15592.7611409910. The cubic root of 243134200 is about 624.1400011860.

Adding to 243134200 its reverse (2431342), we get a palindrome (245565542).

Multiplying 243134200 by its reverse (2431342), we get a square (591142392096400 = 24313420²).

243134200 divided by its reverse (2431342) gives a square (100 = 10²).

The spelling of 243134200 in words is "two hundred forty-three million, one hundred thirty-four thousand, two hundred".