109198872 has 24 divisors (see below), whose sum is σ = 295747140. Its totient is φ = 36399600.

The previous prime is 109198853. The next prime is 109198889. The reversal of 109198872 is 278891901.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 758254 + ... + 758397.

Almost surely, 2^109198872 is an apocalyptic number.

109198872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

109198872 is an abundant number, since it is smaller than the sum of its proper divisors (186548268).

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

109198872 is a wasteful number, since it uses less digits than its factorization.

109198872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516663 (or 1516656 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 45.

The square root of 109198872 is about 10449.8264100415. The cubic root of 109198872 is about 477.9759562610.

It can be divided in two parts, 10919 and 8872, that added together give a palindrome (19791).

The spelling of 109198872 in words is "one hundred nine million, one hundred ninety-eight thousand, eight hundred seventy-two".