243675147 has 16 divisors (see below), whose sum is σ = 330700320. Its totient is φ = 159574272.

The previous prime is 243675143. The next prime is 243675149. The reversal of 243675147 is 741576342.

It is not a de Polignac number, because 243675147 - 2² = 243675143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (243675143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39013 + ... + 44825.

It is an arithmetic number, because the mean of its divisors is an integer number (20668770).

Almost surely, 2^243675147 is an apocalyptic number.

243675147 is a deficient number, since it is larger than the sum of its proper divisors (87025173).

243675147 is a wasteful number, since it uses less digits than its factorization.

243675147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6062.

The product of its digits is 141120, while the sum is 39.

The square root of 243675147 is about 15610.0975973887. The cubic root of 243675147 is about 624.6025394004.

It can be divided in two parts, 243675 and 147, that multiplied together give a square (35820225 = 5985²).

The spelling of 243675147 in words is "two hundred forty-three million, six hundred seventy-five thousand, one hundred forty-seven".