108917961 has 8 divisors (see below), whose sum is σ = 146186304. Its totient is φ = 72130800.

The previous prime is 108917959. The next prime is 108917981. The reversal of 108917961 is 169719801.

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

It is not a de Polignac number, because 108917961 - 2¹ = 108917959 is a prime.

It is not an unprimeable number, because it can be changed into a prime (108917981) 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 7 ways as a sum of consecutive naturals, for example, 119766 + ... + 120671.

It is an arithmetic number, because the mean of its divisors is an integer number (18273288).

Almost surely, 2^108917961 is an apocalyptic number.

It is an amenable number.

108917961 is a deficient number, since it is larger than the sum of its proper divisors (37268343).

108917961 is a wasteful number, since it uses less digits than its factorization.

108917961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240591.

The product of its (nonzero) digits is 27216, while the sum is 42.

The square root of 108917961 is about 10436.3768138181. The cubic root of 108917961 is about 477.5657444448.

The spelling of 108917961 in words is "one hundred eight million, nine hundred seventeen thousand, nine hundred sixty-one".