109440069 has 4 divisors (see below), whose sum is σ = 145920096. Its totient is φ = 72960044.

The previous prime is 109440061. The next prime is 109440083. The reversal of 109440069 is 960044901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 109440069 - 2³ = 109440061 is a prime.

It is a super-3 number, since 3×109440069³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109440061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18240009 + ... + 18240014.

It is an arithmetic number, because the mean of its divisors is an integer number (36480024).

Almost surely, 2^109440069 is an apocalyptic number.

It is an amenable number.

109440069 is a deficient number, since it is larger than the sum of its proper divisors (36480027).

109440069 is an equidigital number, since it uses as much as digits as its factorization.

109440069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36480026.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 109440069 is about 10461.3607623483. The cubic root of 109440069 is about 478.3276130978.

The spelling of 109440069 in words is "one hundred nine million, four hundred forty thousand, sixty-nine".