100200000 has 168 divisors, whose sum is σ = 333353664. Its totient is φ = 26560000.

The previous prime is 100199999. The next prime is 100200011. The reversal of 100200000 is 2001.

It is a Harshad number since it is a multiple of its sum of digits (3).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 599917 + ... + 600083.

It is an arithmetic number, because the mean of its divisors is an integer number (1984248).

Almost surely, 2^100200000 is an apocalyptic number.

100200000 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 100200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166676832).

100200000 is an abundant number, since it is smaller than the sum of its proper divisors (233153664).

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

100200000 is an frugal number, since it uses more digits than its factorization.

100200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 3.

The square root of 100200000 is about 10009.9950049938. The cubic root of 100200000 is about 464.4681165529.

Adding to 100200000 its reverse (2001), we get a palindrome (100202001).

The spelling of 100200000 in words is "one hundred million, two hundred thousand".