243141252435 has 24 divisors (see below), whose sum is σ = 421832636160. Its totient is φ = 129556012032.

The previous prime is 243141252397. The next prime is 243141252503. The reversal of 243141252435 is 534252141342.

It is a happy number.

It is not a de Polignac number, because 243141252435 - 2⁷ = 243141252307 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243141252435.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2436430 + ... + 2534259.

It is an arithmetic number, because the mean of its divisors is an integer number (17576359840).

Almost surely, 2^243141252435 is an apocalyptic number.

243141252435 is a deficient number, since it is larger than the sum of its proper divisors (178691383725).

243141252435 is a wasteful number, since it uses less digits than its factorization.

243141252435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4971787 (or 4971784 counting only the distinct ones).

The product of its digits is 115200, while the sum is 36.

Adding to 243141252435 its reverse (534252141342), we get a palindrome (777393393777).

The spelling of 243141252435 in words is "two hundred forty-three billion, one hundred forty-one million, two hundred fifty-two thousand, four hundred thirty-five".