108543636 has 36 divisors (see below), whose sum is σ = 283838100. Its totient is φ = 34933248.

The previous prime is 108543569. The next prime is 108543641. The reversal of 108543636 is 636345801.

108543636 is a `hidden beast` number, since 10 + 8 + 5 + 4 + 3 + 636 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47610000 + 60933636 = 6900^2 + 7806^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×108543636² = 23563441832200992, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 108543636.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50941 + ... + 53028.

Almost surely, 2^108543636 is an apocalyptic number.

It is an amenable number.

108543636 is an abundant number, since it is smaller than the sum of its proper divisors (175294464).

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

108543636 is a wasteful number, since it uses less digits than its factorization.

108543636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104008 (or 104003 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 108543636 is about 10418.4277124718. The cubic root of 108543636 is about 477.0180233950.

The spelling of 108543636 in words is "one hundred eight million, five hundred forty-three thousand, six hundred thirty-six".