109626981 has 8 divisors (see below), whose sum is σ = 147930720. Its totient is φ = 72203952.

The previous prime is 109626973. The next prime is 109626997. The reversal of 109626981 is 189626901.

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

It is not a de Polignac number, because 109626981 - 2³ = 109626973 is a prime.

It is a super-2 number, since 2×109626981² = 24036149926348722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109626961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 219886 + ... + 220383.

It is an arithmetic number, because the mean of its divisors is an integer number (18491340).

Almost surely, 2^109626981 is an apocalyptic number.

It is an amenable number.

109626981 is a deficient number, since it is larger than the sum of its proper divisors (38303739).

109626981 is an equidigital number, since it uses as much as digits as its factorization.

109626981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440355.

The product of its (nonzero) digits is 46656, while the sum is 42.

The square root of 109626981 is about 10470.2903971189. The cubic root of 109626981 is about 478.5997691180.

The spelling of 109626981 in words is "one hundred nine million, six hundred twenty-six thousand, nine hundred eighty-one".