243031653146 has 16 divisors (see below), whose sum is σ = 377834990280. Its totient is φ = 117146917440.

The previous prime is 243031653079. The next prime is 243031653187. The reversal of 243031653146 is 641356130342.

243031653146 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 241852486225 + 1179166921 = 491785^2 + 34339^2 .

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15057125 + ... + 15073256.

Almost surely, 2^243031653146 is an apocalyptic number.

243031653146 is a deficient number, since it is larger than the sum of its proper divisors (134803337134).

243031653146 is a wasteful number, since it uses less digits than its factorization.

243031653146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30130529.

The product of its (nonzero) digits is 155520, while the sum is 38.

Adding to 243031653146 its reverse (641356130342), we get a palindrome (884387783488).

The spelling of 243031653146 in words is "two hundred forty-three billion, thirty-one million, six hundred fifty-three thousand, one hundred forty-six".