243147534 has 16 divisors (see below), whose sum is σ = 555765888. Its totient is φ = 69470712.

The previous prime is 243147529. The next prime is 243147547. The reversal of 243147534 is 435741342.

It is a junction number, because it is equal to n+sod(n) for n = 243147495 and 243147504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2894572 + ... + 2894655.

It is an arithmetic number, because the mean of its divisors is an integer number (34735368).

Almost surely, 2^243147534 is an apocalyptic number.

243147534 is an abundant number, since it is smaller than the sum of its proper divisors (312618354).

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

243147534 is a wasteful number, since it uses less digits than its factorization.

243147534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5789239.

The product of its digits is 40320, while the sum is 33.

The square root of 243147534 is about 15593.1887053290. The cubic root of 243147534 is about 624.1514107020.

Adding to 243147534 its reverse (435741342), we get a palindrome (678888876).

The spelling of 243147534 in words is "two hundred forty-three million, one hundred forty-seven thousand, five hundred thirty-four".