109080869 has 4 divisors (see below), whose sum is σ = 111741420. Its totient is φ = 106420320.

The previous prime is 109080817. The next prime is 109080877. The reversal of 109080869 is 968080901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 968080901 = 21683 ⋅44647.

It can be written as a sum of positive squares in 2 ways, for example, as 18164644 + 90916225 = 4262^2 + 9535^2 .

It is a cyclic number.

It is not a de Polignac number, because 109080869 - 2⁸ = 109080613 is a prime.

It is a super-2 number, since 2×109080869² = 23797271963590322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 2660509 = 109080869 / (1 + 0 + 9 + 0 + 8 + 0 + 8 + 6 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109083869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1330214 + ... + 1330295.

It is an arithmetic number, because the mean of its divisors is an integer number (27935355).

Almost surely, 2^109080869 is an apocalyptic number.

It is an amenable number.

109080869 is a deficient number, since it is larger than the sum of its proper divisors (2660551).

109080869 is an equidigital number, since it uses as much as digits as its factorization.

109080869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660550.

The product of its (nonzero) digits is 31104, while the sum is 41.

The square root of 109080869 is about 10444.1787135227. The cubic root of 109080869 is about 477.8037233291.

The spelling of 109080869 in words is "one hundred nine million, eighty thousand, eight hundred sixty-nine".