108825981 has 16 divisors (see below), whose sum is σ = 158906880. Its totient is φ = 65699120.

The previous prime is 108825979. The next prime is 108826001. The reversal of 108825981 is 189528801.

It is a cyclic number.

It is not a de Polignac number, because 108825981 - 2¹ = 108825979 is a prime.

It is a super-2 number, since 2×108825981² = 23686188281224722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108825911) 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 15 ways as a sum of consecutive naturals, for example, 2410 + ... + 14948.

It is an arithmetic number, because the mean of its divisors is an integer number (9931680).

Almost surely, 2^108825981 is an apocalyptic number.

108825981 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

108825981 is a deficient number, since it is larger than the sum of its proper divisors (50080899).

108825981 is a wasteful number, since it uses less digits than its factorization.

108825981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12816.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 108825981 is about 10431.9691813195. The cubic root of 108825981 is about 477.4312736079.

The spelling of 108825981 in words is "one hundred eight million, eight hundred twenty-five thousand, nine hundred eighty-one".