243061445253 has 32 divisors (see below), whose sum is σ = 364168232064. Its totient is φ = 142922880000.

The previous prime is 243061445191. The next prime is 243061445261. The reversal of 243061445253 is 352544160342.

243061445253 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 243061445253 - 2⁶ = 243061445189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243061445153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 251368 + ... + 741153.

It is an arithmetic number, because the mean of its divisors is an integer number (11380257252).

Almost surely, 2^243061445253 is an apocalyptic number.

It is an amenable number.

243061445253 is a deficient number, since it is larger than the sum of its proper divisors (121106786811).

243061445253 is a wasteful number, since it uses less digits than its factorization.

243061445253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 992757.

The product of its (nonzero) digits is 345600, while the sum is 39.

The spelling of 243061445253 in words is "two hundred forty-three billion, sixty-one million, four hundred forty-five thousand, two hundred fifty-three".