13106609 has 8 divisors (see below), whose sum is σ = 13909320. Its totient is φ = 12307456.

The previous prime is 13106603. The next prime is 13106617. The reversal of 13106609 is 90660131.

It can be written as a sum of positive squares in 4 ways, for example, as 5626384 + 7480225 = 2372^2 + 2735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13106609 - 2¹² = 13102513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13106603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13277 + ... + 14229.

It is an arithmetic number, because the mean of its divisors is an integer number (1738665).

Almost surely, 2^13106609 is an apocalyptic number.

It is an amenable number.

13106609 is a deficient number, since it is larger than the sum of its proper divisors (802711).

13106609 is an equidigital number, since it uses as much as digits as its factorization.

13106609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 13106609 is about 3620.3050976403. The cubic root of 13106609 is about 235.7744721380.

The spelling of 13106609 in words is "thirteen million, one hundred six thousand, six hundred nine".