128010128 has 10 divisors (see below), whose sum is σ = 248019654. Its totient is φ = 64005056.

The previous prime is 128010109. The next prime is 128010131. The reversal of 128010128 is 821010821.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 89718784 + 38291344 = 9472^2 + 6188^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4000301 + ... + 4000332.

Almost surely, 2^128010128 is an apocalyptic number.

It is an amenable number.

128010128 is a deficient number, since it is larger than the sum of its proper divisors (120009526).

128010128 is an equidigital number, since it uses as much as digits as its factorization.

128010128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000641 (or 8000635 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 128010128 is about 11314.1560887235. The cubic root of 128010128 is about 503.9817117745.

Adding to 128010128 its reverse (821010821), we get a palindrome (949020949).

The spelling of 128010128 in words is "one hundred twenty-eight million, ten thousand, one hundred twenty-eight".