3636544136 has 8 divisors (see below), whose sum is σ = 6818520270. Its totient is φ = 1818272064.

The previous prime is 3636544133. The next prime is 3636544151. The reversal of 3636544136 is 6314456363.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3298204900 + 338339236 = 57430^2 + 18394^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×3636544136³ (a number of 30 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3636544093 and 3636544102.

It is not an unprimeable number, because it can be changed into a prime (3636544133) 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 as a sum of consecutive naturals, namely, 227284001 + ... + 227284016.

Almost surely, 2^3636544136 is an apocalyptic number.

It is an amenable number.

3636544136 is a deficient number, since it is larger than the sum of its proper divisors (3181976134).

3636544136 is a wasteful number, since it uses less digits than its factorization.

3636544136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 454568023 (or 454568019 counting only the distinct ones).

The product of its digits is 466560, while the sum is 41.

The square root of 3636544136 is about 60303.7655209026. The cubic root of 3636544136 is about 1537.7873627375.

The spelling of 3636544136 in words is "three billion, six hundred thirty-six million, five hundred forty-four thousand, one hundred thirty-six".