6478131 has 8 divisors (see below), whose sum is σ = 9422784. Its totient is φ = 3926120.

The previous prime is 6478117. The next prime is 6478187. The reversal of 6478131 is 1318746.

It is a happy number.

6478131 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6478131 - 2¹⁷ = 6347059 is a prime.

It is a super-2 number, since 2×6478131² = 83932362506322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6478631) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98121 + ... + 98186.

It is an arithmetic number, because the mean of its divisors is an integer number (1177848).

Almost surely, 2^6478131 is an apocalyptic number.

6478131 is a deficient number, since it is larger than the sum of its proper divisors (2944653).

6478131 is a wasteful number, since it uses less digits than its factorization.

6478131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196321.

The product of its digits is 4032, while the sum is 30.

The square root of 6478131 is about 2545.2172795264. The cubic root of 6478131 is about 186.4160245054.

It can be divided in two parts, 647 and 8131, that added together give a palindrome (8778).

The spelling of 6478131 in words is "six million, four hundred seventy-eight thousand, one hundred thirty-one".