1536120636 has 12 divisors (see below), whose sum is σ = 3584281512. Its totient is φ = 512040208.

The previous prime is 1536120631. The next prime is 1536120643. The reversal of 1536120636 is 6360216351.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1536120597 and 1536120606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1536120631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64005015 + ... + 64005038.

It is an arithmetic number, because the mean of its divisors is an integer number (298690126).

Almost surely, 2^1536120636 is an apocalyptic number.

It is an amenable number.

1536120636 is an abundant number, since it is smaller than the sum of its proper divisors (2048160876).

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

1536120636 is a wasteful number, since it uses less digits than its factorization.

1536120636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128010060 (or 128010058 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 33.

The square root of 1536120636 is about 39193.3748993373. The cubic root of 1536120636 is about 1153.8298615696.

Adding to 1536120636 its reverse (6360216351), we get a palindrome (7896336987).

The spelling of 1536120636 in words is "one billion, five hundred thirty-six million, one hundred twenty thousand, six hundred thirty-six".