6939131 has 4 divisors (see below), whose sum is σ = 7070112. Its totient is φ = 6808152.

The previous prime is 6939103. The next prime is 6939137. The reversal of 6939131 is 1319396.

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

It is a cyclic number.

It is not a de Polignac number, because 6939131 - 2⁶ = 6939067 is a prime.

It is a super-2 number, since 2×6939131² = 96303078070322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6939137) 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, 65411 + ... + 65516.

It is an arithmetic number, because the mean of its divisors is an integer number (1767528).

Almost surely, 2^6939131 is an apocalyptic number.

6939131 is a deficient number, since it is larger than the sum of its proper divisors (130981).

6939131 is a wasteful number, since it uses less digits than its factorization.

6939131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130980.

The product of its digits is 4374, while the sum is 32.

The square root of 6939131 is about 2634.2230353560. The cubic root of 6939131 is about 190.7370356724.

The spelling of 6939131 in words is "six million, nine hundred thirty-nine thousand, one hundred thirty-one".