109527981 has 8 divisors (see below), whose sum is σ = 146104800. Its totient is φ = 72984912.

The previous prime is 109527967. The next prime is 109528021. The reversal of 109527981 is 189725901.

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

It is not a de Polignac number, because 109527981 - 2⁵ = 109527949 is a prime.

It is a super-2 number, since 2×109527981² = 23992757243872722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109527911) 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, 486 + ... + 14808.

It is an arithmetic number, because the mean of its divisors is an integer number (18263100).

Almost surely, 2^109527981 is an apocalyptic number.

It is an amenable number.

109527981 is a deficient number, since it is larger than the sum of its proper divisors (36576819).

109527981 is a wasteful number, since it uses less digits than its factorization.

109527981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16875.

The product of its (nonzero) digits is 45360, while the sum is 42.

The square root of 109527981 is about 10465.5616667239. The cubic root of 109527981 is about 478.4556572499.

The spelling of 109527981 in words is "one hundred nine million, five hundred twenty-seven thousand, nine hundred eighty-one".