109180681 has 8 divisors (see below), whose sum is σ = 115958304. Its totient is φ = 102442560.

The previous prime is 109180651. The next prime is 109180703. The reversal of 109180681 is 186081901.

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 109180681 - 2¹³ = 109172489 is a prime.

It is a super-2 number, since 2×109180681² = 23840842207247522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109180601) 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 7 ways as a sum of consecutive naturals, for example, 4075 + ... + 15328.

It is an arithmetic number, because the mean of its divisors is an integer number (14494788).

Almost surely, 2^109180681 is an apocalyptic number.

109180681 is the 6609-th centered pentagonal number.

It is an amenable number.

109180681 is a deficient number, since it is larger than the sum of its proper divisors (6777623).

109180681 is a wasteful number, since it uses less digits than its factorization.

109180681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19751.

The product of its (nonzero) digits is 3456, while the sum is 34.

The square root of 109180681 is about 10448.9559765557. The cubic root of 109180681 is about 477.9494134243.

The spelling of 109180681 in words is "one hundred nine million, one hundred eighty thousand, six hundred eighty-one".