243801061 has 16 divisors (see below), whose sum is σ = 283419136. Its totient is φ = 205410816.

The previous prime is 243801037. The next prime is 243801067. The reversal of 243801061 is 160108342.

243801061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 243801061 - 2⁷ = 243800933 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243801067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 105460 + ... + 107746.

It is an arithmetic number, because the mean of its divisors is an integer number (17713696).

Almost surely, 2^243801061 is an apocalyptic number.

It is an amenable number.

243801061 is a deficient number, since it is larger than the sum of its proper divisors (39618075).

243801061 is a wasteful number, since it uses less digits than its factorization.

243801061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2548.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 243801061 is about 15614.1301710982. The cubic root of 243801061 is about 624.7101042775.

The spelling of 243801061 in words is "two hundred forty-three million, eight hundred one thousand, sixty-one".