100499100 has 144 divisors (see below), whose sum is σ = 318333792. Its totient is φ = 24330240.

The previous prime is 100499039. The next prime is 100499111. The reversal of 100499100 is 1994001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 284524 + ... + 284876.

Almost surely, 2^100499100 is an apocalyptic number.

100499100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100499100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159166896).

100499100 is an abundant number, since it is smaller than the sum of its proper divisors (217834692).

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

100499100 is a wasteful number, since it uses less digits than its factorization.

100499100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456 (or 449 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 100499100 is about 10024.9239398611. The cubic root of 100499100 is about 464.9298078811.

The spelling of 100499100 in words is "one hundred million, four hundred ninety-nine thousand, one hundred".