4009135 has 16 divisors (see below), whose sum is σ = 5324256. Its totient is φ = 2878848.

The previous prime is 4009097. The next prime is 4009139. The reversal of 4009135 is 5319004.

4009135 = 311² + 312² + ... + 347².

It is a cyclic number.

It is not a de Polignac number, because 4009135 - 2⁷ = 4009007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4009139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1572 + ... + 3238.

It is an arithmetic number, because the mean of its divisors is an integer number (332766).

Almost surely, 2^4009135 is an apocalyptic number.

4009135 is a deficient number, since it is larger than the sum of its proper divisors (1315121).

4009135 is a wasteful number, since it uses less digits than its factorization.

4009135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1722.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 4009135 is about 2002.2824476082. The cubic root of 4009135 is about 158.8608542283.

The spelling of 4009135 in words is "four million, nine thousand, one hundred thirty-five".