20135230 has 16 divisors (see below), whose sum is σ = 36928224. Its totient is φ = 7901920.

The previous prime is 20135221. The next prime is 20135239. The reversal of 20135230 is 3253102.

It is an interprime number because it is at equal distance from previous prime (20135221) and next prime (20135239).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135239) 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, 18466 + ... + 19525.

It is an arithmetic number, because the mean of its divisors is an integer number (2308014).

Almost surely, 2^20135230 is an apocalyptic number.

20135230 is a deficient number, since it is larger than the sum of its proper divisors (16792994).

20135230 is a wasteful number, since it uses less digits than its factorization.

20135230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38051.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 20135230 is about 4487.2296575950. The cubic root of 20135230 is about 272.0521724460.

Adding to 20135230 its reverse (3253102), we get a palindrome (23388332).

The spelling of 20135230 in words is "twenty million, one hundred thirty-five thousand, two hundred thirty".