12110409 has 12 divisors (see below), whose sum is σ = 18522036. Its totient is φ = 7598592.

The previous prime is 12110407. The next prime is 12110437. The reversal of 12110409 is 90401121.

It can be written as a sum of positive squares in 2 ways, for example, as 9437184 + 2673225 = 3072^2 + 1635^2 .

It is not a de Polignac number, because 12110409 - 2¹ = 12110407 is a prime.

It is a super-2 number, since 2×12110409² = 293324012294562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12110391 and 12110400.

It is not an unprimeable number, because it can be changed into a prime (12110401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39424 + ... + 39729.

It is an arithmetic number, because the mean of its divisors is an integer number (1543503).

Almost surely, 2^12110409 is an apocalyptic number.

It is an amenable number.

12110409 is a deficient number, since it is larger than the sum of its proper divisors (6411627).

12110409 is a wasteful number, since it uses less digits than its factorization.

12110409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79176 (or 79173 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 12110409 is about 3480.0012931032. The cubic root of 12110409 is about 229.6428546574.

The spelling of 12110409 in words is "twelve million, one hundred ten thousand, four hundred nine".