100128148 has 6 divisors (see below), whose sum is σ = 175224266. Its totient is φ = 50064072.

The previous prime is 100128137. The next prime is 100128173. The reversal of 100128148 is 841821001.

It can be written as a sum of positive squares in only one way, i.e., 98644624 + 1483524 = 9932^2 + 1218^2 .

It is a super-3 number, since 3×100128148³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 12516015 + ... + 12516022.

Almost surely, 2^100128148 is an apocalyptic number.

It is an amenable number.

100128148 is a deficient number, since it is larger than the sum of its proper divisors (75096118).

100128148 is a wasteful number, since it uses less digits than its factorization.

100128148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25032041 (or 25032039 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 100128148 is about 10006.4053485755. The cubic root of 100128148 is about 464.3570688371.

Adding to 100128148 its reverse (841821001), we get a palindrome (941949149).

The spelling of 100128148 in words is "one hundred million, one hundred twenty-eight thousand, one hundred forty-eight".