100543243 has 8 divisors (see below), whose sum is σ = 101253600. Its totient is φ = 99835968.

The previous prime is 100543217. The next prime is 100543259. The reversal of 100543243 is 342345001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100543243 - 2¹⁷ = 100412171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100543213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119418 + ... + 120256.

It is an arithmetic number, because the mean of its divisors is an integer number (12656700).

Almost surely, 2^100543243 is an apocalyptic number.

100543243 is a deficient number, since it is larger than the sum of its proper divisors (710357).

100543243 is an equidigital number, since it uses as much as digits as its factorization.

100543243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1541.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 100543243 is about 10027.1253607402. The cubic root of 100543243 is about 464.9978694935.

Adding to 100543243 its reverse (342345001), we get a palindrome (442888244).

The spelling of 100543243 in words is "one hundred million, five hundred forty-three thousand, two hundred forty-three".