6138309 has 16 divisors (see below), whose sum is σ = 9044352. Its totient is φ = 3683328.

The previous prime is 6138299. The next prime is 6138313. The reversal of 6138309 is 9038316.

It is not a de Polignac number, because 6138309 - 2⁵ = 6138277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6138409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1444 + ... + 3789.

It is an arithmetic number, because the mean of its divisors is an integer number (565272).

Almost surely, 2^6138309 is an apocalyptic number.

6138309 is a gapful number since it is divisible by the number (69) formed by its first and last digit.

It is an amenable number.

6138309 is a deficient number, since it is larger than the sum of its proper divisors (2906043).

6138309 is a wasteful number, since it uses less digits than its factorization.

6138309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5276.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 6138309 is about 2477.5610991457. The cubic root of 6138309 is about 183.0977112633.

The spelling of 6138309 in words is "six million, one hundred thirty-eight thousand, three hundred nine".