6136909 has 4 divisors (see below), whose sum is σ = 6151516. Its totient is φ = 6122304.

The previous prime is 6136901. The next prime is 6136919. The reversal of 6136909 is 9096316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2975625 + 3161284 = 1725^2 + 1778^2 .

It is a cyclic number.

It is not a de Polignac number, because 6136909 - 2³ = 6136901 is a prime.

It is a Duffinian number.

6136909 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6136901) 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, 6654 + ... + 7519.

It is an arithmetic number, because the mean of its divisors is an integer number (1537879).

Almost surely, 2^6136909 is an apocalyptic number.

It is an amenable number.

6136909 is a deficient number, since it is larger than the sum of its proper divisors (14607).

6136909 is a wasteful number, since it uses less digits than its factorization.

6136909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14606.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 6136909 is about 2477.2785471158. The cubic root of 6136909 is about 183.0837901500.

The spelling of 6136909 in words is "six million, one hundred thirty-six thousand, nine hundred nine".