100028925 has 60 divisors (see below), whose sum is σ = 189410496. Its totient is φ = 52164000.

The previous prime is 100028911. The next prime is 100028927. The reversal of 100028925 is 529820001.

It is not a de Polignac number, because 100028925 - 2¹³ = 100020733 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100028927) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 94650 + ... + 95700.

Almost surely, 2^100028925 is an apocalyptic number.

100028925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

100028925 is a deficient number, since it is larger than the sum of its proper divisors (89381571).

100028925 is a wasteful number, since it uses less digits than its factorization.

100028925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1120 (or 1106 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 100028925 is about 10001.4461454332. The cubic root of 100028925 is about 464.2036316994.

Adding to 100028925 its reverse (529820001), we get a palindrome (629848926).

The spelling of 100028925 in words is "one hundred million, twenty-eight thousand, nine hundred twenty-five".