109745665 has 8 divisors (see below), whose sum is σ = 133660800. Its totient is φ = 86485872.

The previous prime is 109745651. The next prime is 109745677. The reversal of 109745665 is 566547901.

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 109745665 - 2¹¹ = 109743617 is a prime.

It is a super-3 number, since 3×109745665³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163465 + ... + 164134.

It is an arithmetic number, because the mean of its divisors is an integer number (16707600).

Almost surely, 2^109745665 is an apocalyptic number.

It is an amenable number.

109745665 is a deficient number, since it is larger than the sum of its proper divisors (23915135).

109745665 is an equidigital number, since it uses as much as digits as its factorization.

109745665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327671.

The product of its (nonzero) digits is 226800, while the sum is 43.

The square root of 109745665 is about 10475.9565195738. The cubic root of 109745665 is about 478.7724201950.

The spelling of 109745665 in words is "one hundred nine million, seven hundred forty-five thousand, six hundred sixty-five".