243134012 has 36 divisors (see below), whose sum is σ = 488037648. Its totient is φ = 105705600.

The previous prime is 243134011. The next prime is 243134041. The reversal of 243134012 is 210431342.

It is a super-2 number, since 2×243134012² = 118228295582432288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243134011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 212 + ... + 22052.

Almost surely, 2^243134012 is an apocalyptic number.

243134012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

243134012 is an abundant number, since it is smaller than the sum of its proper divisors (244903636).

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

243134012 is a wasteful number, since it uses less digits than its factorization.

243134012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21890 (or 21877 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 243134012 is about 15592.7551125515. The cubic root of 243134012 is about 624.1398403169.

Adding to 243134012 its reverse (210431342), we get a palindrome (453565354).

The spelling of 243134012 in words is "two hundred forty-three million, one hundred thirty-four thousand, twelve".