109911969 has 6 divisors (see below), whose sum is σ = 158761746. Its totient is φ = 73274640.

The previous prime is 109911947. The next prime is 109912007. The reversal of 109911969 is 969119901.

It can be written as a sum of positive squares in only one way, i.e., 79441569 + 30470400 = 8913^2 + 5520^2 .

It is not a de Polignac number, because 109911969 - 2¹³ = 109903777 is a prime.

It is a super-2 number, since 2×109911969² = 24161281858913922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (109911929) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6106212 + ... + 6106229.

It is an arithmetic number, because the mean of its divisors is an integer number (26460291).

Almost surely, 2^109911969 is an apocalyptic number.

It is an amenable number.

109911969 is a deficient number, since it is larger than the sum of its proper divisors (48849777).

109911969 is a wasteful number, since it uses less digits than its factorization.

109911969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212447 (or 12212444 counting only the distinct ones).

The product of its (nonzero) digits is 39366, while the sum is 45.

The square root of 109911969 is about 10483.8909284674. The cubic root of 109911969 is about 479.0141353883.

The spelling of 109911969 in words is "one hundred nine million, nine hundred eleven thousand, nine hundred sixty-nine".