6139013 has 4 divisors (see below), whose sum is σ = 6144780. Its totient is φ = 6133248.

The previous prime is 6138991. The next prime is 6139019. The reversal of 6139013 is 3109316.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 3323329 + 2815684 = 1823^2 + 1678^2 .

It is a cyclic number.

It is not a de Polignac number, because 6139013 - 2¹² = 6134917 is a prime.

It is a super-2 number, since 2×6139013² = 75374961228338, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6139013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6139019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770 + ... + 3587.

It is an arithmetic number, because the mean of its divisors is an integer number (1536195).

Almost surely, 2^6139013 is an apocalyptic number.

It is an amenable number.

6139013 is a deficient number, since it is larger than the sum of its proper divisors (5767).

6139013 is a wasteful number, since it uses less digits than its factorization.

6139013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5766.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 6139013 is about 2477.7031702769. The cubic root of 6139013 is about 183.1047107948.

The spelling of 6139013 in words is "six million, one hundred thirty-nine thousand, thirteen".