109518081 has 8 divisors (see below), whose sum is σ = 146330880. Its totient is φ = 72858672.

The previous prime is 109518049. The next prime is 109518083. The reversal of 109518081 is 180815901.

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

It is not a de Polignac number, because 109518081 - 2⁵ = 109518049 is a prime.

It is a super-2 number, since 2×109518081² = 23988420131845122, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (109518083) 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, 36670 + ... + 39543.

It is an arithmetic number, because the mean of its divisors is an integer number (18291360).

Almost surely, 2^109518081 is an apocalyptic number.

It is an amenable number.

109518081 is a deficient number, since it is larger than the sum of its proper divisors (36812799).

109518081 is an equidigital number, since it uses as much as digits as its factorization.

109518081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76695.

The product of its (nonzero) digits is 2880, while the sum is 33.

The square root of 109518081 is about 10465.0886761651. The cubic root of 109518081 is about 478.4412412876.

The spelling of 109518081 in words is "one hundred nine million, five hundred eighteen thousand, eighty-one".