6139971 has 6 divisors (see below), whose sum is σ = 8868860. Its totient is φ = 4093308.

The previous prime is 6139961. The next prime is 6139979. The reversal of 6139971 is 1799316.

It is not a de Polignac number, because 6139971 - 2¹⁰ = 6138947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6139979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 341101 + ... + 341118.

Almost surely, 2^6139971 is an apocalyptic number.

6139971 is a deficient number, since it is larger than the sum of its proper divisors (2728889).

6139971 is a wasteful number, since it uses less digits than its factorization.

6139971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682225 (or 682222 counting only the distinct ones).

The product of its digits is 10206, while the sum is 36.

The square root of 6139971 is about 2477.8964869421. The cubic root of 6139971 is about 183.1142348659.

The spelling of 6139971 in words is "six million, one hundred thirty-nine thousand, nine hundred seventy-one".