128017092 has 24 divisors (see below), whose sum is σ = 341379136. Its totient is φ = 36576288.

The previous prime is 128017067. The next prime is 128017111. The reversal of 128017092 is 290710821.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 761923 + ... + 762090.

Almost surely, 2^128017092 is an apocalyptic number.

128017092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128017092 is an abundant number, since it is smaller than the sum of its proper divisors (213362044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128017092 is a wasteful number, since it uses less digits than its factorization.

128017092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524027 (or 1524025 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 128017092 is about 11314.4638405892. The cubic root of 128017092 is about 503.9908508039.

The spelling of 128017092 in words is "one hundred twenty-eight million, seventeen thousand, ninety-two".