109195993 has 8 divisors (see below), whose sum is σ = 111997440. Its totient is φ = 106414560.

The previous prime is 109195979. The next prime is 109196011. The reversal of 109195993 is 399591901.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109195993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (109195943) 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, 6373 + ... + 16093.

It is an arithmetic number, because the mean of its divisors is an integer number (13999680).

Almost surely, 2^109195993 is an apocalyptic number.

It is an amenable number.

109195993 is a deficient number, since it is larger than the sum of its proper divisors (2801447).

109195993 is an equidigital number, since it uses as much as digits as its factorization.

109195993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10007.

The product of its (nonzero) digits is 98415, while the sum is 46.

The square root of 109195993 is about 10449.6886556490. The cubic root of 109195993 is about 477.9717556533.

The spelling of 109195993 in words is "one hundred nine million, one hundred ninety-five thousand, nine hundred ninety-three".