2004023135 has 4 divisors (see below), whose sum is σ = 2404827768. Its totient is φ = 1603218504.

The previous prime is 2004023123. The next prime is 2004023137. The reversal of 2004023135 is 5313204002.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2004023135 - 2¹⁸ = 2003760991 is a prime.

It is a super-2 number, since 2×2004023135² = 8032217451230456450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004023137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200402309 + ... + 200402318.

It is an arithmetic number, because the mean of its divisors is an integer number (601206942).

Almost surely, 2^2004023135 is an apocalyptic number.

2004023135 is a deficient number, since it is larger than the sum of its proper divisors (400804633).

2004023135 is an equidigital number, since it uses as much as digits as its factorization.

2004023135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400804632.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 2004023135 is about 44766.3169693465. The cubic root of 2004023135 is about 1260.7652894782.

Adding to 2004023135 its reverse (5313204002), we get a palindrome (7317227137).

The spelling of 2004023135 in words is "two billion, four million, twenty-three thousand, one hundred thirty-five".