6139491 has 8 divisors (see below), whose sum is σ = 8245440. Its totient is φ = 4063272.

The previous prime is 6139453. The next prime is 6139493. The reversal of 6139491 is 1949316.

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

It is not a de Polignac number, because 6139491 - 2¹⁰ = 6138467 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6139493) 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, 6945 + ... + 7778.

It is an arithmetic number, because the mean of its divisors is an integer number (1030680).

Almost surely, 2^6139491 is an apocalyptic number.

6139491 is a deficient number, since it is larger than the sum of its proper divisors (2105949).

6139491 is a wasteful number, since it uses less digits than its factorization.

6139491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14865.

The product of its digits is 5832, while the sum is 33.

The square root of 6139491 is about 2477.7996287029. The cubic root of 6139491 is about 183.1094630126.

The spelling of 6139491 in words is "six million, one hundred thirty-nine thousand, four hundred ninety-one".