20136612 has 48 divisors (see below), whose sum is σ = 48269312. Its totient is φ = 6531840.

The previous prime is 20136601. The next prime is 20136629. The reversal of 20136612 is 21663102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111162 + ... + 111342.

Almost surely, 2^20136612 is an apocalyptic number.

It is an amenable number.

20136612 is an abundant number, since it is smaller than the sum of its proper divisors (28132700).

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

20136612 is a wasteful number, since it uses less digits than its factorization.

20136612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 20136612 is about 4487.3836475167. The cubic root of 20136612 is about 272.0583964872.

Adding to 20136612 its reverse (21663102), we get a palindrome (41799714).

The spelling of 20136612 in words is "twenty million, one hundred thirty-six thousand, six hundred twelve".