128425092 has 24 divisors (see below), whose sum is σ = 301501536. Its totient is φ = 42545088.

The previous prime is 128425081. The next prime is 128425093. The reversal of 128425092 is 290524821.

It is not an unprimeable number, because it can be changed into a prime (128425093) 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, 30873 + ... + 34784.

It is an arithmetic number, because the mean of its divisors is an integer number (12562564).

Almost surely, 2^128425092 is an apocalyptic number.

128425092 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128425092 is an abundant number, since it is smaller than the sum of its proper divisors (173076444).

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

128425092 is a wasteful number, since it uses less digits than its factorization.

128425092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65827 (or 65825 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 128425092 is about 11332.4795168577. The cubic root of 128425092 is about 504.5257017863.

The spelling of 128425092 in words is "one hundred twenty-eight million, four hundred twenty-five thousand, ninety-two".