6139609 has 8 divisors (see below), whose sum is σ = 7035008. Its totient is φ = 5248800.

The previous prime is 6139591. The next prime is 6139613. The reversal of 6139609 is 9069316.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6139609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6139699) 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, 2509 + ... + 4309.

It is an arithmetic number, because the mean of its divisors is an integer number (879376).

Almost surely, 2^6139609 is an apocalyptic number.

It is an amenable number.

6139609 is a deficient number, since it is larger than the sum of its proper divisors (895399).

6139609 is a wasteful number, since it uses less digits than its factorization.

6139609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2295.

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

The square root of 6139609 is about 2477.8234400376. The cubic root of 6139609 is about 183.1106361163.

The spelling of 6139609 in words is "six million, one hundred thirty-nine thousand, six hundred nine".