4009131 has 18 divisors (see below), whose sum is σ = 6737172. Its totient is φ = 2290680.

The previous prime is 4009097. The next prime is 4009139. The reversal of 4009131 is 1319004.

It is not a de Polignac number, because 4009131 - 2⁷ = 4009003 is a prime.

It is a super-2 number, since 2×4009131² = 32146262750322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4009139) 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 17 ways as a sum of consecutive naturals, for example, 4105 + ... + 4986.

Almost surely, 2^4009131 is an apocalyptic number.

4009131 is a deficient number, since it is larger than the sum of its proper divisors (2728041).

4009131 is a wasteful number, since it uses less digits than its factorization.

4009131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9111 (or 9101 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 4009131 is about 2002.2814487479. The cubic root of 4009131 is about 158.8608013953.

The spelling of 4009131 in words is "four million, nine thousand, one hundred thirty-one".