6487131 has 16 divisors (see below), whose sum is σ = 9920768. Its totient is φ = 3693600.

The previous prime is 6487123. The next prime is 6487157. The reversal of 6487131 is 1317846.

It is a happy number.

It is not a de Polignac number, because 6487131 - 2³ = 6487123 is a prime.

It is a super-2 number, since 2×6487131² = 84165737222322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6487181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11076 + ... + 11646.

It is an arithmetic number, because the mean of its divisors is an integer number (620048).

Almost surely, 2^6487131 is an apocalyptic number.

6487131 is a deficient number, since it is larger than the sum of its proper divisors (3433637).

6487131 is a wasteful number, since it uses less digits than its factorization.

6487131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122.

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

The square root of 6487131 is about 2546.9846878221. The cubic root of 6487131 is about 186.5023131722.

The spelling of 6487131 in words is "six million, four hundred eighty-seven thousand, one hundred thirty-one".