10109543 has 4 divisors (see below), whose sum is σ = 10704240. Its totient is φ = 9514848.

The previous prime is 10109531. The next prime is 10109549. The reversal of 10109543 is 34590101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 10109543 - 2⁶ = 10109479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10109549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 297323 + ... + 297356.

It is an arithmetic number, because the mean of its divisors is an integer number (2676060).

Almost surely, 2^10109543 is an apocalyptic number.

10109543 is a deficient number, since it is larger than the sum of its proper divisors (594697).

10109543 is an equidigital number, since it uses as much as digits as its factorization.

10109543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594696.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 10109543 is about 3179.5507544306. The cubic root of 10109543 is about 216.2272913216.

Adding to 10109543 its reverse (34590101), we get a palindrome (44699644).

The spelling of 10109543 in words is "ten million, one hundred nine thousand, five hundred forty-three".