23543043 has 16 divisors (see below), whose sum is σ = 32640000. Its totient is φ = 15078240.

The previous prime is 23543029. The next prime is 23543089. The reversal of 23543043 is 34034532.

It is not a de Polignac number, because 23543043 - 2⁸ = 23542787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23543243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13008 + ... + 14706.

It is an arithmetic number, because the mean of its divisors is an integer number (2040000).

Almost surely, 2^23543043 is an apocalyptic number.

23543043 is a deficient number, since it is larger than the sum of its proper divisors (9096957).

23543043 is a wasteful number, since it uses less digits than its factorization.

23543043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1882.

The product of its (nonzero) digits is 4320, while the sum is 24.

The square root of 23543043 is about 4852.1173728590. The cubic root of 23543043 is about 286.6074874835.

Adding to 23543043 its reverse (34034532), we get a palindrome (57577575).

The spelling of 23543043 in words is "twenty-three million, five hundred forty-three thousand, forty-three".