109531443 has 16 divisors (see below), whose sum is σ = 170055936. Its totient is φ = 61407840.

The previous prime is 109531439. The next prime is 109531469. The reversal of 109531443 is 344135901.

It is not a de Polignac number, because 109531443 - 2² = 109531439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109531443.

It is not an unprimeable number, because it can be changed into a prime (109531043) 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, 48093 + ... + 50318.

It is an arithmetic number, because the mean of its divisors is an integer number (10628496).

Almost surely, 2^109531443 is an apocalyptic number.

109531443 is a deficient number, since it is larger than the sum of its proper divisors (60524493).

109531443 is an equidigital number, since it uses as much as digits as its factorization.

109531443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98474.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 109531443 is about 10465.7270650443. The cubic root of 109531443 is about 478.4606982632.

The spelling of 109531443 in words is "one hundred nine million, five hundred thirty-one thousand, four hundred forty-three".