100125100 has 36 divisors (see below), whose sum is σ = 217954800. Its totient is φ = 39924160.

The previous prime is 100125083. The next prime is 100125127. The reversal of 100125100 is 1521001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34506 + ... + 37294.

It is an arithmetic number, because the mean of its divisors is an integer number (6054300).

Almost surely, 2^100125100 is an apocalyptic number.

100125100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100125100 is an abundant number, since it is smaller than the sum of its proper divisors (117829700).

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

100125100 is a wasteful number, since it uses less digits than its factorization.

100125100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3162 (or 3155 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 100125100 is about 10006.2530449714. The cubic root of 100125100 is about 464.3523569596.

Adding to 100125100 its reverse (1521001), we get a palindrome (101646101).

The spelling of 100125100 in words is "one hundred million, one hundred twenty-five thousand, one hundred".