100254128 has 40 divisors (see below), whose sum is σ = 210538608. Its totient is φ = 45971712.

The previous prime is 100254109. The next prime is 100254137. The reversal of 100254128 is 821452001.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32426 + ... + 35382.

Almost surely, 2^100254128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 100254128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105269304).

100254128 is an abundant number, since it is smaller than the sum of its proper divisors (110284480).

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

100254128 is a wasteful number, since it uses less digits than its factorization.

100254128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3141 (or 3135 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 100254128 is about 10012.6983376111. The cubic root of 100254128 is about 464.5517366613.

The spelling of 100254128 in words is "one hundred million, two hundred fifty-four thousand, one hundred twenty-eight".