4540131 has 20 divisors (see below), whose sum is σ = 7079952. Its totient is φ = 2893968.

The previous prime is 4540127. The next prime is 4540147. The reversal of 4540131 is 1310454.

It is a happy number.

It is not a de Polignac number, because 4540131 - 2² = 4540127 is a prime.

It is a super-2 number, since 2×4540131² = 41225578994322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4540111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 645 + ... + 3081.

Almost surely, 2^4540131 is an apocalyptic number.

4540131 is a deficient number, since it is larger than the sum of its proper divisors (2539821).

4540131 is a wasteful number, since it uses less digits than its factorization.

4540131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2472 (or 2463 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 4540131 is about 2130.7583157177. The cubic root of 4540131 is about 165.5856871688.

Adding to 4540131 its reverse (1310454), we get a palindrome (5850585).

The spelling of 4540131 in words is "four million, five hundred forty thousand, one hundred thirty-one".