243215013153 has 32 divisors (see below), whose sum is σ = 378606592000. Its totient is φ = 138822093648.

The previous prime is 243215013149. The next prime is 243215013161. The reversal of 243215013153 is 351310512342.

It is not a de Polignac number, because 243215013153 - 2² = 243215013149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243215013153.

It is not an unprimeable number, because it can be changed into a prime (243215013103) 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 31 ways as a sum of consecutive naturals, for example, 774768 + ... + 1042446.

It is an arithmetic number, because the mean of its divisors is an integer number (11831456000).

Almost surely, 2^243215013153 is an apocalyptic number.

It is an amenable number.

243215013153 is a deficient number, since it is larger than the sum of its proper divisors (135391578847).

243215013153 is an equidigital number, since it uses as much as digits as its factorization.

243215013153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268586 (or 268572 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 243215013153 its reverse (351310512342), we get a palindrome (594525525495).

The spelling of 243215013153 in words is "two hundred forty-three billion, two hundred fifteen million, thirteen thousand, one hundred fifty-three".