243512134 has 4 divisors (see below), whose sum is σ = 365268204. Its totient is φ = 121756066.

The previous prime is 243512083. The next prime is 243512141. The reversal of 243512134 is 431215342.

243512134 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 243512099 and 243512108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60878032 + ... + 60878035.

It is an arithmetic number, because the mean of its divisors is an integer number (91317051).

Almost surely, 2^243512134 is an apocalyptic number.

243512134 is a deficient number, since it is larger than the sum of its proper divisors (121756070).

243512134 is a wasteful number, since it uses less digits than its factorization.

243512134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121756069.

The product of its digits is 2880, while the sum is 25.

The square root of 243512134 is about 15604.8753279224. The cubic root of 243512134 is about 624.4632268112.

Adding to 243512134 its reverse (431215342), we get a palindrome (674727476).

The spelling of 243512134 in words is "two hundred forty-three million, five hundred twelve thousand, one hundred thirty-four".