243134452 has 24 divisors (see below), whose sum is σ = 466587072. Its totient is φ = 109939200.

The previous prime is 243134417. The next prime is 243134453. The reversal of 243134452 is 254431342.

It is a happy number.

It is a super-2 number, since 2×243134452² = 118228723498680608, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243134452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134453) 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, 5824 + ... + 22807.

It is an arithmetic number, because the mean of its divisors is an integer number (19441128).

Almost surely, 2^243134452 is an apocalyptic number.

243134452 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243134452 is a deficient number, since it is larger than the sum of its proper divisors (223452620).

243134452 is a wasteful number, since it uses less digits than its factorization.

243134452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28839 (or 28837 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 243134452 is about 15592.7692216617. The cubic root of 243134452 is about 624.1402168190.

Adding to 243134452 its reverse (254431342), we get a palindrome (497565794).

The spelling of 243134452 in words is "two hundred forty-three million, one hundred thirty-four thousand, four hundred fifty-two".