109688514 has 64 divisors (see below), whose sum is σ = 243102720. Its totient is φ = 32788800.

The previous prime is 109688507. The next prime is 109688533. The reversal of 109688514 is 415886901.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 726339 + ... + 726489.

It is an arithmetic number, because the mean of its divisors is an integer number (3798480).

Almost surely, 2^109688514 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 109688514, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (121551360).

109688514 is an abundant number, since it is smaller than the sum of its proper divisors (133414206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

109688514 is a wasteful number, since it uses less digits than its factorization.

109688514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 109688514 is about 10473.2284420803. The cubic root of 109688514 is about 478.6892974776.

The spelling of 109688514 in words is "one hundred nine million, six hundred eighty-eight thousand, five hundred fourteen".