100215232 has 56 divisors (see below), whose sum is σ = 223515936. Its totient is φ = 44233728.

The previous prime is 100215211. The next prime is 100215239. The reversal of 100215232 is 232512001.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100215239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16518 + ... + 21754.

It is an arithmetic number, because the mean of its divisors is an integer number (3991356).

Almost surely, 2^100215232 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 100215232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111757968).

100215232 is an abundant number, since it is smaller than the sum of its proper divisors (123300704).

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

100215232 is a wasteful number, since it uses less digits than its factorization.

100215232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5285 (or 5275 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 100215232 is about 10010.7558156215. The cubic root of 100215232 is about 464.4916508839.

Adding to 100215232 its reverse (232512001), we get a palindrome (332727233).

The spelling of 100215232 in words is "one hundred million, two hundred fifteen thousand, two hundred thirty-two".