1108172196 has 18 divisors (see below), whose sum is σ = 2801213142. Its totient is φ = 369390720.

The previous prime is 1108172179. The next prime is 1108172203. The reversal of 1108172196 is 6912718011.

It can be written as a sum of positive squares in only one way, i.e., 891022500 + 217149696 = 29850^2 + 14736^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 30782561 = 1108172196 / (1 + 1 + 0 + 8 + 1 + 7 + 2 + 1 + 9 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 1108172196.

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 5 ways as a sum of consecutive naturals, for example, 15391245 + ... + 15391316.

Almost surely, 2^1108172196 is an apocalyptic number.

It is an amenable number.

1108172196 is an abundant number, since it is smaller than the sum of its proper divisors (1693040946).

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

1108172196 is a wasteful number, since it uses less digits than its factorization.

1108172196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30782571 (or 30782566 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 36.

The square root of 1108172196 is about 33289.2204174264. The cubic root of 1108172196 is about 1034.8301730738.

The spelling of 1108172196 in words is "one billion, one hundred eight million, one hundred seventy-two thousand, one hundred ninety-six".