20135876 has 6 divisors (see below), whose sum is σ = 35237790. Its totient is φ = 10067936.

The previous prime is 20135873. The next prime is 20135887. The reversal of 20135876 is 67853102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 10086976 + 10048900 = 3176^2 + 3170^2 .

It is not an unprimeable number, because it can be changed into a prime (20135873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2516981 + ... + 2516988.

It is an arithmetic number, because the mean of its divisors is an integer number (5872965).

Almost surely, 2^20135876 is an apocalyptic number.

It is an amenable number.

20135876 is a deficient number, since it is larger than the sum of its proper divisors (15101914).

20135876 is a wasteful number, since it uses less digits than its factorization.

20135876 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5033973 (or 5033971 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 20135876 is about 4487.3016390700. The cubic root of 20135876 is about 272.0550818379.

Adding to 20135876 its reverse (67853102), we get a palindrome (87988978).

The spelling of 20135876 in words is "twenty million, one hundred thirty-five thousand, eight hundred seventy-six".