128098071 has 8 divisors (see below), whose sum is σ = 189774960. Its totient is φ = 85398696.

The previous prime is 128098051. The next prime is 128098073. The reversal of 128098071 is 170890821.

It is not a de Polignac number, because 128098071 - 2¹³ = 128089879 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 2372160 + ... + 2372213.

It is an arithmetic number, because the mean of its divisors is an integer number (23721870).

Almost surely, 2^128098071 is an apocalyptic number.

128098071 is a deficient number, since it is larger than the sum of its proper divisors (61676889).

128098071 is an equidigital number, since it uses as much as digits as its factorization.

128098071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4744382 (or 4744376 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 36.

The square root of 128098071 is about 11318.0418359361. The cubic root of 128098071 is about 504.0970972224.

The spelling of 128098071 in words is "one hundred twenty-eight million, ninety-eight thousand, seventy-one".