6494139 has 6 divisors (see below), whose sum is σ = 9380436. Its totient is φ = 4329420.

The previous prime is 6494101. The next prime is 6494167. The reversal of 6494139 is 9314946.

6494139 is a `hidden beast` number, since 649 + 4 + 1 + 3 + 9 = 666.

6494139 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6494139 - 2¹⁷ = 6363067 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6494179) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360777 + ... + 360794.

It is an arithmetic number, because the mean of its divisors is an integer number (1563406).

Almost surely, 2^6494139 is an apocalyptic number.

6494139 is a deficient number, since it is larger than the sum of its proper divisors (2886297).

6494139 is a wasteful number, since it uses less digits than its factorization.

6494139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721577 (or 721574 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 6494139 is about 2548.3600609019. The cubic root of 6494139 is about 186.5694480296.

It can be divided in two parts, 64941 and 39, that added together give a triangular number (64980 = T₃₆₀).

The spelling of 6494139 in words is "six million, four hundred ninety-four thousand, one hundred thirty-nine".