109166961 has 8 divisors (see below), whose sum is σ = 146997504. Its totient is φ = 72057200.

The previous prime is 109166957. The next prime is 109166999. The reversal of 109166961 is 169661901.

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 109166961 - 2² = 109166957 is a prime.

It is a super-3 number, since 3×109166961³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (109166921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179841 + ... + 180446.

It is an arithmetic number, because the mean of its divisors is an integer number (18374688).

Almost surely, 2^109166961 is an apocalyptic number.

It is an amenable number.

109166961 is a deficient number, since it is larger than the sum of its proper divisors (37830543).

109166961 is a wasteful number, since it uses less digits than its factorization.

109166961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360391.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 109166961 is about 10448.2994310079. The cubic root of 109166961 is about 477.9293923590.

The spelling of 109166961 in words is "one hundred nine million, one hundred sixty-six thousand, nine hundred sixty-one".