100299128 has 32 divisors (see below), whose sum is σ = 195255360. Its totient is φ = 48266880.

The previous prime is 100299127. The next prime is 100299131. The reversal of 100299128 is 821992001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100299094 and 100299103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100299127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20750 + ... + 25122.

It is an arithmetic number, because the mean of its divisors is an integer number (6101730).

Almost surely, 2^100299128 is an apocalyptic number.

It is an amenable number.

100299128 is a deficient number, since it is larger than the sum of its proper divisors (94956232).

100299128 is a wasteful number, since it uses less digits than its factorization.

100299128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487 (or 4483 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 100299128 is about 10014.9452320020. The cubic root of 100299128 is about 464.6212323903.

The spelling of 100299128 in words is "one hundred million, two hundred ninety-nine thousand, one hundred twenty-eight".