243539692148 has 24 divisors (see below), whose sum is σ = 451280188800. Its totient is φ = 114602986368.

The previous prime is 243539692147. The next prime is 243539692157. The reversal of 243539692148 is 841296935342.

It is a super-3 number, since 3×243539692148³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 243539692093 and 243539692102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243539692147) 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 in 7 ways as a sum of consecutive naturals, for example, 3211493 + ... + 3286451.

It is an arithmetic number, because the mean of its divisors is an integer number (18803341200).

Almost surely, 2^243539692148 is an apocalyptic number.

It is an amenable number.

243539692148 is a deficient number, since it is larger than the sum of its proper divisors (207740496652).

243539692148 is a wasteful number, since it uses less digits than its factorization.

243539692148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122759 (or 122757 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 56.

The spelling of 243539692148 in words is "two hundred forty-three billion, five hundred thirty-nine million, six hundred ninety-two thousand, one hundred forty-eight".