109966159 has 4 divisors (see below), whose sum is σ = 110355016. Its totient is φ = 109577304.

The previous prime is 109966121. The next prime is 109966163. The reversal of 109966159 is 951669901.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 109966159 - 2¹⁷ = 109835087 is a prime.

It is a super-2 number, since 2×109966159² = 24185112250426562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109966169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194004 + ... + 194569.

It is an arithmetic number, because the mean of its divisors is an integer number (27588754).

Almost surely, 2^109966159 is an apocalyptic number.

109966159 is a deficient number, since it is larger than the sum of its proper divisors (388857).

109966159 is an equidigital number, since it uses as much as digits as its factorization.

109966159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388856.

The product of its (nonzero) digits is 131220, while the sum is 46.

The square root of 109966159 is about 10486.4750512267. The cubic root of 109966159 is about 479.0928453820.

The spelling of 109966159 in words is "one hundred nine million, nine hundred sixty-six thousand, one hundred fifty-nine".