153243543 has 4 divisors (see below), whose sum is σ = 204324728. Its totient is φ = 102162360.

The previous prime is 153243499. The next prime is 153243553. The reversal of 153243543 is 345342351.

153243543 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 153243543 - 2⁹ = 153243031 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 153243543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153243553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25540588 + ... + 25540593.

It is an arithmetic number, because the mean of its divisors is an integer number (51081182).

Almost surely, 2^153243543 is an apocalyptic number.

153243543 is a deficient number, since it is larger than the sum of its proper divisors (51081185).

153243543 is an equidigital number, since it uses as much as digits as its factorization.

153243543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51081184.

The product of its digits is 21600, while the sum is 30.

The square root of 153243543 is about 12379.1576046191. The cubic root of 153243543 is about 535.1317612988.

Adding to 153243543 its reverse (345342351), we get a palindrome (498585894).

The spelling of 153243543 in words is "one hundred fifty-three million, two hundred forty-three thousand, five hundred forty-three".