4004131 has 4 divisors (see below), whose sum is σ = 4014064. Its totient is φ = 3994200.

The previous prime is 4004089. The next prime is 4004137. The reversal of 4004131 is 1314004.

4004131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4004131 is a prime.

It is a super-2 number, since 2×4004131² = 32066130130322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4004137) 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 3 ways as a sum of consecutive naturals, for example, 4335 + ... + 5176.

It is an arithmetic number, because the mean of its divisors is an integer number (1003516).

Almost surely, 2^4004131 is an apocalyptic number.

4004131 is a deficient number, since it is larger than the sum of its proper divisors (9933).

4004131 is an equidigital number, since it uses as much as digits as its factorization.

4004131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9932.

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

The square root of 4004131 is about 2001.0324834945. The cubic root of 4004131 is about 158.7947326768.

Adding to 4004131 its reverse (1314004), we get a palindrome (5318135).

The spelling of 4004131 in words is "four million, four thousand, one hundred thirty-one".