243006124556261 has 8 divisors (see below), whose sum is σ = 265097738050848. Its totient is φ = 220914535666000.

The previous prime is 243006124556197. The next prime is 243006124556317. The reversal of 243006124556261 is 162655421600342.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 243006124556261 - 2⁶ = 243006124556197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243006124556861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18955391 + ... + 29074371.

It is an arithmetic number, because the mean of its divisors is an integer number (33137217256356).

Almost surely, 2^{243006124556261} is an apocalyptic number.

It is an amenable number.

243006124556261 is a deficient number, since it is larger than the sum of its proper divisors (22091613494587).

243006124556261 is a wasteful number, since it uses less digits than its factorization.

243006124556261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12302163.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 243006124556261 in words is "two hundred forty-three trillion, six billion, one hundred twenty-four million, five hundred fifty-six thousand, two hundred sixty-one".