128098072 has 8 divisors (see below), whose sum is σ = 240183900. Its totient is φ = 64049032.

The previous prime is 128098051. The next prime is 128098073. The reversal of 128098072 is 270890821.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128098073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8006122 + ... + 8006137.

Almost surely, 2^128098072 is an apocalyptic number.

It is an amenable number.

128098072 is a deficient number, since it is larger than the sum of its proper divisors (112085828).

128098072 is a wasteful number, since it uses less digits than its factorization.

128098072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16012265 (or 16012261 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 128098072 is about 11318.0418801134. The cubic root of 128098072 is about 504.0970985342.

The spelling of 128098072 in words is "one hundred twenty-eight million, ninety-eight thousand, seventy-two".