109509127 has 12 divisors (see below), whose sum is σ = 135522480. Its totient is φ = 86643648.

The previous prime is 109509119. The next prime is 109509131. The reversal of 109509127 is 721905901.

It is not a de Polignac number, because 109509127 - 2³ = 109509119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 109509092 and 109509101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109509527) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45102 + ... + 47467.

It is an arithmetic number, because the mean of its divisors is an integer number (11293540).

Almost surely, 2^109509127 is an apocalyptic number.

109509127 is a deficient number, since it is larger than the sum of its proper divisors (26013353).

109509127 is an equidigital number, since it uses as much as digits as its factorization.

109509127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92602 (or 92589 counting only the distinct ones).

The product of its (nonzero) digits is 5670, while the sum is 34.

The square root of 109509127 is about 10464.6608640701. The cubic root of 109509127 is about 478.4282021024.

The spelling of 109509127 in words is "one hundred nine million, five hundred nine thousand, one hundred twenty-seven".