109543901 has 4 divisors (see below), whose sum is σ = 109574400. Its totient is φ = 109513404.

The previous prime is 109543879. The next prime is 109543909. The reversal of 109543901 is 109345901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109543901 - 2¹⁰ = 109542877 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 (109543909) 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, 9011 + ... + 17328.

It is an arithmetic number, because the mean of its divisors is an integer number (27393600).

Almost surely, 2^109543901 is an apocalyptic number.

It is an amenable number.

109543901 is a deficient number, since it is larger than the sum of its proper divisors (30499).

109543901 is an equidigital number, since it uses as much as digits as its factorization.

109543901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30498.

The product of its (nonzero) digits is 4860, while the sum is 32.

The square root of 109543901 is about 10466.3222289398. The cubic root of 109543901 is about 478.4788374606.

The spelling of 109543901 in words is "one hundred nine million, five hundred forty-three thousand, nine hundred one".