109181163 has 96 divisors (see below), whose sum is σ = 200202240. Its totient is φ = 52254720.

The previous prime is 109181159. The next prime is 109181167. The reversal of 109181163 is 361181901.

It is an interprime number because it is at equal distance from previous prime (109181159) and next prime (109181167).

It is not a de Polignac number, because 109181163 - 2² = 109181159 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 109181163.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109181167) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1125531 + ... + 1125627.

It is an arithmetic number, because the mean of its divisors is an integer number (2085440).

Almost surely, 2^109181163 is an apocalyptic number.

109181163 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

109181163 is a deficient number, since it is larger than the sum of its proper divisors (91021077).

109181163 is a wasteful number, since it uses less digits than its factorization.

109181163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177 (or 170 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 30.

The square root of 109181163 is about 10448.9790410355. The cubic root of 109181163 is about 477.9501167578.

The spelling of 109181163 in words is "one hundred nine million, one hundred eighty-one thousand, one hundred sixty-three".