109171144 has 16 divisors (see below), whose sum is σ = 216737100. Its totient is φ = 51374592.

The previous prime is 109171141. The next prime is 109171147. The reversal of 109171144 is 441171901.

It is an interprime number because it is at equal distance from previous prime (109171141) and next prime (109171147).

It can be written as a sum of positive squares in 2 ways, for example, as 103266244 + 5904900 = 10162^2 + 2430^2 .

It is not an unprimeable number, because it can be changed into a prime (109171141) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 401229 + ... + 401500.

Almost surely, 2^109171144 is an apocalyptic number.

It is an amenable number.

109171144 is a deficient number, since it is larger than the sum of its proper divisors (107565956).

109171144 is a wasteful number, since it uses less digits than its factorization.

109171144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 802752 (or 802748 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 109171144 is about 10448.4996052065. The cubic root of 109171144 is about 477.9354966268.

The spelling of 109171144 in words is "one hundred nine million, one hundred seventy-one thousand, one hundred forty-four".