6138507 has 4 divisors (see below), whose sum is σ = 8184680. Its totient is φ = 4092336.

The previous prime is 6138481. The next prime is 6138523. The reversal of 6138507 is 7058316.

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

It is not a de Polignac number, because 6138507 - 2⁶ = 6138443 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6138557) 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 3 ways as a sum of consecutive naturals, for example, 1023082 + ... + 1023087.

It is an arithmetic number, because the mean of its divisors is an integer number (2046170).

Almost surely, 2^6138507 is an apocalyptic number.

6138507 is a deficient number, since it is larger than the sum of its proper divisors (2046173).

6138507 is a wasteful number, since it uses less digits than its factorization.

6138507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046172.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 6138507 is about 2477.6010574748. The cubic root of 6138507 is about 183.0996799357.

The spelling of 6138507 in words is "six million, one hundred thirty-eight thousand, five hundred seven".