4040131 has 4 divisors (see below), whose sum is σ = 4044600. Its totient is φ = 4035664.

The previous prime is 4040129. The next prime is 4040159. The reversal of 4040131 is 1310404.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4040131 - 2¹ = 4040129 is a prime.

It is a super-2 number, since 2×4040131² = 32645316994322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4040161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346 + ... + 2863.

It is an arithmetic number, because the mean of its divisors is an integer number (1011150).

Almost surely, 2^4040131 is an apocalyptic number.

4040131 is a deficient number, since it is larger than the sum of its proper divisors (4469).

4040131 is a wasteful number, since it uses less digits than its factorization.

4040131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4468.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 4040131 is about 2010.0077114280. The cubic root of 4040131 is about 159.2692062727.

Adding to 4040131 its reverse (1310404), we get a palindrome (5350535).

The spelling of 4040131 in words is "four million, forty thousand, one hundred thirty-one".