8541109 has 8 divisors (see below), whose sum is σ = 9003960. Its totient is φ = 8089536.

The previous prime is 8541101. The next prime is 8541121. The reversal of 8541109 is 9011458.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4318084 + 4223025 = 2078^2 + 2055^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 8541109 - 2³ = 8541101 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 (8541101) 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 7 ways as a sum of consecutive naturals, for example, 1242 + ... + 4315.

It is an arithmetic number, because the mean of its divisors is an integer number (1125495).

Almost surely, 2^8541109 is an apocalyptic number.

It is an amenable number.

8541109 is a deficient number, since it is larger than the sum of its proper divisors (462851).

8541109 is a wasteful number, since it uses less digits than its factorization.

8541109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5639.

The product of its (nonzero) digits is 1440, while the sum is 28.

The square root of 8541109 is about 2922.5175790746. The cubic root of 8541109 is about 204.4112315319.

The spelling of 8541109 in words is "eight million, five hundred forty-one thousand, one hundred nine".