109885543 has 2 divisors, whose sum is σ = 109885544. Its totient is φ = 109885542.

The previous prime is 109885537. The next prime is 109885571. The reversal of 109885543 is 345588901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 109885543 - 2¹³ = 109877351 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109885543.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109825543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54942771 + 54942772.

It is an arithmetic number, because the mean of its divisors is an integer number (54942772).

Almost surely, 2^109885543 is an apocalyptic number.

109885543 is a deficient number, since it is larger than the sum of its proper divisors (1).

109885543 is an equidigital number, since it uses as much as digits as its factorization.

109885543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172800, while the sum is 43.

The square root of 109885543 is about 10482.6305381808. The cubic root of 109885543 is about 478.9757427174.

The spelling of 109885543 in words is "one hundred nine million, eight hundred eighty-five thousand, five hundred forty-three".