243225375 has 32 divisors (see below), whose sum is σ = 428545728. Its totient is φ = 122086400.

The previous prime is 243225337. The next prime is 243225401. The reversal of 243225375 is 573522342.

It is not a de Polignac number, because 243225375 - 2⁷ = 243225247 is a prime.

It is a congruent 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 31 ways as a sum of consecutive naturals, for example, 12702 + ... + 25451.

It is an arithmetic number, because the mean of its divisors is an integer number (13392054).

Almost surely, 2^243225375 is an apocalyptic number.

243225375 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243225375 is a deficient number, since it is larger than the sum of its proper divisors (185320353).

243225375 is a wasteful number, since it uses less digits than its factorization.

243225375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38188 (or 38178 counting only the distinct ones).

The product of its digits is 50400, while the sum is 33.

The square root of 243225375 is about 15595.6844992453. The cubic root of 243225375 is about 624.2180086580.

The spelling of 243225375 in words is "two hundred forty-three million, two hundred twenty-five thousand, three hundred seventy-five".