6492139 has 2 divisors, whose sum is σ = 6492140. Its totient is φ = 6492138.

The previous prime is 6492137. The next prime is 6492163. The reversal of 6492139 is 9312946.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6492139 - 2¹ = 6492137 is a prime.

Together with 6492137, it forms a pair of twin primes.

It is an Ulam number.

6492139 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (6492133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3246069 + 3246070.

It is an arithmetic number, because the mean of its divisors is an integer number (3246070).

Almost surely, 2^6492139 is an apocalyptic number.

6492139 is a deficient number, since it is larger than the sum of its proper divisors (1).

6492139 is an equidigital number, since it uses as much as digits as its factorization.

6492139 is an evil number, because the sum of its binary digits is even.

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

The square root of 6492139 is about 2547.9676214583. The cubic root of 6492139 is about 186.5502934653.

The spelling of 6492139 in words is "six million, four hundred ninety-two thousand, one hundred thirty-nine".