20135008 has 24 divisors (see below), whose sum is σ = 40565448. Its totient is φ = 9832704.

The previous prime is 20134999. The next prime is 20135009. The reversal of 20135008 is 80053102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135009) 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, 5941 + ... + 8692.

It is an arithmetic number, because the mean of its divisors is an integer number (1690227).

Almost surely, 2^20135008 is an apocalyptic number.

It is an amenable number.

20135008 is an abundant number, since it is smaller than the sum of its proper divisors (20430440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20135008 is a wasteful number, since it uses less digits than its factorization.

20135008 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14686 (or 14678 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 20135008 is about 4487.2049206605. The cubic root of 20135008 is about 272.0511726097.

It can be divided in two parts, 2013 and 5008, that added together give a triangular number (7021 = T₁₁₈).

The spelling of 20135008 in words is "twenty million, one hundred thirty-five thousand, eight".