243328975 has 6 divisors (see below), whose sum is σ = 301727960. Its totient is φ = 194663160.

The previous prime is 243328933. The next prime is 243328993. The reversal of 243328975 is 579823342.

It is not a de Polignac number, because 243328975 - 2⁷ = 243328847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4866555 + ... + 4866604.

Almost surely, 2^243328975 is an apocalyptic number.

243328975 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

243328975 is a deficient number, since it is larger than the sum of its proper divisors (58398985).

243328975 is an equidigital number, since it uses as much as digits as its factorization.

243328975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9733169 (or 9733164 counting only the distinct ones).

The product of its digits is 362880, while the sum is 43.

The square root of 243328975 is about 15599.0055772796. The cubic root of 243328975 is about 624.3066230499.

The spelling of 243328975 in words is "two hundred forty-three million, three hundred twenty-eight thousand, nine hundred seventy-five".