10500128 has 12 divisors (see below), whose sum is σ = 20672190. Its totient is φ = 5250048.

The previous prime is 10500109. The next prime is 10500137. The reversal of 10500128 is 82100501.

It can be written as a sum of positive squares in only one way, i.e., 10316944 + 183184 = 3212^2 + 428^2 .

It is a super-2 number, since 2×10500128² = 220505376032768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164033 + ... + 164096.

Almost surely, 2^10500128 is an apocalyptic number.

It is an amenable number.

10500128 is a deficient number, since it is larger than the sum of its proper divisors (10172062).

10500128 is an equidigital number, since it uses as much as digits as its factorization.

10500128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328139 (or 328131 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 17.

The square root of 10500128 is about 3240.3900999725. The cubic root of 10500128 is about 218.9768467978.

Adding to 10500128 its reverse (82100501), we get a palindrome (92600629).

The spelling of 10500128 in words is "ten million, five hundred thousand, one hundred twenty-eight".