243985592231 has 8 divisors (see below), whose sum is σ = 245437806000. Its totient is φ = 242536170240.

The previous prime is 243985592197. The next prime is 243985592293. The reversal of 243985592231 is 132295589342.

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

It is a cyclic number.

It is not a de Polignac number, because 243985592231 - 2²² = 243981397927 is a prime.

It is a super-2 number, since 2×243985592231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243985592131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 522506 + ... + 872343.

It is an arithmetic number, because the mean of its divisors is an integer number (30679725750).

Almost surely, 2^243985592231 is an apocalyptic number.

243985592231 is a deficient number, since it is larger than the sum of its proper divisors (1452213769).

243985592231 is a wasteful number, since it uses less digits than its factorization.

243985592231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395889.

The product of its digits is 4665600, while the sum is 53.

The spelling of 243985592231 in words is "two hundred forty-three billion, nine hundred eighty-five million, five hundred ninety-two thousand, two hundred thirty-one".