109639148 has 12 divisors (see below), whose sum is σ = 192164280. Its totient is φ = 54735072.

The previous prime is 109639141. The next prime is 109639193. The reversal of 109639148 is 841936901.

It is not an unprimeable number, because it can be changed into a prime (109639141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18161 + ... + 23432.

It is an arithmetic number, because the mean of its divisors is an integer number (16013690).

Almost surely, 2^109639148 is an apocalyptic number.

It is an amenable number.

109639148 is a deficient number, since it is larger than the sum of its proper divisors (82525132).

109639148 is a wasteful number, since it uses less digits than its factorization.

109639148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42256 (or 42254 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 109639148 is about 10470.8714059528. The cubic root of 109639148 is about 478.6174743335.

The spelling of 109639148 in words is "one hundred nine million, six hundred thirty-nine thousand, one hundred forty-eight".