100105236 has 216 divisors, whose sum is σ = 329201600. Its totient is φ = 25613280.

The previous prime is 100105217. The next prime is 100105237. The reversal of 100105236 is 632501001.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100105237) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1494075 + ... + 1494141.

Almost surely, 2^100105236 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 100105236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164600800).

100105236 is an abundant number, since it is smaller than the sum of its proper divisors (229096364).

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

100105236 is a wasteful number, since it uses less digits than its factorization.

100105236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120 (or 90 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 100105236 is about 10005.2604164010. The cubic root of 100105236 is about 464.3216470268.

Adding to 100105236 its reverse (632501001), we get a palindrome (732606237).

The spelling of 100105236 in words is "one hundred million, one hundred five thousand, two hundred thirty-six".