109000581 has 4 divisors (see below), whose sum is σ = 145334112. Its totient is φ = 72667052.

The previous prime is 109000561. The next prime is 109000601. The reversal of 109000581 is 185000901.

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 an interprime number because it is at equal distance from previous prime (109000561) and next prime (109000601).

It is a cyclic number.

It is not a de Polignac number, because 109000581 - 2⁶ = 109000517 is a prime.

It is a super-2 number, since 2×109000581² = 23762253316675122, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109000561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18166761 + ... + 18166766.

It is an arithmetic number, because the mean of its divisors is an integer number (36333528).

Almost surely, 2^109000581 is an apocalyptic number.

It is an amenable number.

109000581 is a deficient number, since it is larger than the sum of its proper divisors (36333531).

109000581 is an equidigital number, since it uses as much as digits as its factorization.

109000581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36333530.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 109000581 is about 10440.3343337271. The cubic root of 109000581 is about 477.6864668339.

The spelling of 109000581 in words is "one hundred nine million, five hundred eighty-one", and thus it is an aban number.