243134875 has 16 divisors (see below), whose sum is σ = 305319456. Its totient is φ = 193298400.

The previous prime is 243134861. The next prime is 243134897. The reversal of 243134875 is 578431342.

It is a happy number.

It is not a de Polignac number, because 243134875 - 2⁷ = 243134747 is a prime.

It is a super-2 number, since 2×243134875² = 118229134882531250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14409 + ... + 26341.

It is an arithmetic number, because the mean of its divisors is an integer number (19082466).

Almost surely, 2^243134875 is an apocalyptic number.

243134875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243134875 is a deficient number, since it is larger than the sum of its proper divisors (62184581).

243134875 is a wasteful number, since it uses less digits than its factorization.

243134875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12111 (or 12101 counting only the distinct ones).

The product of its digits is 80640, while the sum is 37.

The square root of 243134875 is about 15592.7827856352. The cubic root of 243134875 is about 624.1405787739.

The spelling of 243134875 in words is "two hundred forty-three million, one hundred thirty-four thousand, eight hundred seventy-five".