109198655 has 8 divisors (see below), whose sum is σ = 134580192. Its totient is φ = 84997728.

The previous prime is 109198651. The next prime is 109198669. The reversal of 109198655 is 556891901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 109198655 - 2² = 109198651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109198651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 294947 + ... + 295316.

It is an arithmetic number, because the mean of its divisors is an integer number (16822524).

Almost surely, 2^109198655 is an apocalyptic number.

109198655 is a deficient number, since it is larger than the sum of its proper divisors (25381537).

109198655 is an equidigital number, since it uses as much as digits as its factorization.

109198655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590305.

The product of its (nonzero) digits is 97200, while the sum is 44.

The square root of 109198655 is about 10449.8160270887. The cubic root of 109198655 is about 477.9756396495.

The spelling of 109198655 in words is "one hundred nine million, one hundred ninety-eight thousand, six hundred fifty-five".