4004135 has 8 divisors (see below), whose sum is σ = 4819920. Its totient is φ = 3193344.

The previous prime is 4004089. The next prime is 4004137. The reversal of 4004135 is 5314004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4004135 - 2¹² = 4000039 is a prime.

It is a super-4 number, since 4×4004135⁴ (a number of 28 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839 + ... + 2951.

It is an arithmetic number, because the mean of its divisors is an integer number (602490).

Almost surely, 2^4004135 is an apocalyptic number.

4004135 is a deficient number, since it is larger than the sum of its proper divisors (815785).

4004135 is a wasteful number, since it uses less digits than its factorization.

4004135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2497.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 4004135 is about 2001.0334829782. The cubic root of 4004135 is about 158.7947855538.

Adding to 4004135 its reverse (5314004), we get a palindrome (9318139).

The spelling of 4004135 in words is "four million, four thousand, one hundred thirty-five".