243495128 has 8 divisors (see below), whose sum is σ = 456553380. Its totient is φ = 121747560.

The previous prime is 243495121. The next prime is 243495151. The reversal of 243495128 is 821594342.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 243495091 and 243495100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243495121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15218438 + ... + 15218453.

Almost surely, 2^243495128 is an apocalyptic number.

It is an amenable number.

243495128 is a deficient number, since it is larger than the sum of its proper divisors (213058252).

243495128 is a wasteful number, since it uses less digits than its factorization.

243495128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30436897 (or 30436893 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The square root of 243495128 is about 15604.3304245969. The cubic root of 243495128 is about 624.4486897275.

The spelling of 243495128 in words is "two hundred forty-three million, four hundred ninety-five thousand, one hundred twenty-eight".