120108636 has 48 divisors (see below), whose sum is σ = 315168000. Its totient is φ = 39550896.

The previous prime is 120108629. The next prime is 120108643. The reversal of 120108636 is 636801021.

120108636 is a `hidden beast` number, since 1 + 20 + 1 + 0 + 8 + 636 = 666.

It is an interprime number because it is at equal distance from previous prime (120108629) and next prime (120108643).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent 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, 2265 + ... + 15663.

It is an arithmetic number, because the mean of its divisors is an integer number (6566000).

Almost surely, 2^120108636 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120108636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (157584000).

120108636 is an abundant number, since it is smaller than the sum of its proper divisors (195059364).

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

120108636 is a wasteful number, since it uses less digits than its factorization.

120108636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13495 (or 13487 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 120108636 is about 10959.4085606843. The cubic root of 120108636 is about 493.3912140919.

Adding to 120108636 its reverse (636801021), we get a palindrome (756909657).

The spelling of 120108636 in words is "one hundred twenty million, one hundred eight thousand, six hundred thirty-six".