243166004 has 6 divisors (see below), whose sum is σ = 425540514. Its totient is φ = 121583000.

The previous prime is 243166003. The next prime is 243166019. The reversal of 243166004 is 400661342.

243166004 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 138062500 + 105103504 = 11750^2 + 10252^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243166003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30395747 + ... + 30395754.

It is an arithmetic number, because the mean of its divisors is an integer number (70923419).

Almost surely, 2^243166004 is an apocalyptic number.

It is an amenable number.

243166004 is a deficient number, since it is larger than the sum of its proper divisors (182374510).

243166004 is a wasteful number, since it uses less digits than its factorization.

243166004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60791505 (or 60791503 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 243166004 is about 15593.7809398491. The cubic root of 243166004 is about 624.1672142548.

The spelling of 243166004 in words is "two hundred forty-three million, one hundred sixty-six thousand, four".