6249139 has 8 divisors (see below), whose sum is σ = 6758640. Its totient is φ = 5743776.

The previous prime is 6249127. The next prime is 6249151. The reversal of 6249139 is 9319426.

It is an interprime number because it is at equal distance from previous prime (6249127) and next prime (6249151).

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

It is a cyclic number.

It is not a de Polignac number, because 6249139 - 2⁵ = 6249107 is a prime.

It is a Duffinian number.

6249139 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6249539) 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, 2604 + ... + 4390.

It is an arithmetic number, because the mean of its divisors is an integer number (844830).

Almost surely, 2^6249139 is an apocalyptic number.

6249139 is a deficient number, since it is larger than the sum of its proper divisors (509501).

6249139 is a wasteful number, since it uses less digits than its factorization.

6249139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2069.

The product of its digits is 11664, while the sum is 34.

The square root of 6249139 is about 2499.8277940690. The cubic root of 6249139 is about 184.1931160073.

The spelling of 6249139 in words is "six million, two hundred forty-nine thousand, one hundred thirty-nine".