128110898 has 4 divisors (see below), whose sum is σ = 192166350. Its totient is φ = 64055448.

The previous prime is 128110883. The next prime is 128110921. The reversal of 128110898 is 898011821.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 69939769 + 58171129 = 8363^2 + 7627^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32027723 + ... + 32027726.

Almost surely, 2^128110898 is an apocalyptic number.

128110898 is a deficient number, since it is larger than the sum of its proper divisors (64055452).

128110898 is an equidigital number, since it uses as much as digits as its factorization.

128110898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64055451.

The product of its (nonzero) digits is 9216, while the sum is 38.

The square root of 128110898 is about 11318.6084833782. The cubic root of 128110898 is about 504.1139224502.

The spelling of 128110898 in words is "one hundred twenty-eight million, one hundred ten thousand, eight hundred ninety-eight".