100243612 has 18 divisors (see below), whose sum is σ = 204067752. Its totient is φ = 42961464.

The previous prime is 100243607. The next prime is 100243613. The reversal of 100243612 is 216342001.

It is a self number, because there is not a number n which added to its sum of digits gives 100243612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100243613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 255528 + ... + 255919.

Almost surely, 2^100243612 is an apocalyptic number.

It is an amenable number.

100243612 is an abundant number, since it is smaller than the sum of its proper divisors (103824140).

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

100243612 is a wasteful number, since it uses less digits than its factorization.

100243612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511465 (or 511456 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 100243612 is about 10012.1731906714. The cubic root of 100243612 is about 464.5354932840.

Adding to 100243612 its reverse (216342001), we get a palindrome (316585613).

The spelling of 100243612 in words is "one hundred million, two hundred forty-three thousand, six hundred twelve".