128285075 has 12 divisors (see below), whose sum is σ = 160054488. Its totient is φ = 101995200.

The previous prime is 128285063. The next prime is 128285081. The reversal of 128285075 is 570582821.

It is a happy number.

It is not a de Polignac number, because 128285075 - 2⁶ = 128285011 is a prime.

It is a super-3 number, since 3×128285075³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11666 + ... + 19815.

It is an arithmetic number, because the mean of its divisors is an integer number (13337874).

Almost surely, 2^128285075 is an apocalyptic number.

128285075 is a deficient number, since it is larger than the sum of its proper divisors (31769413).

128285075 is a wasteful number, since it uses less digits than its factorization.

128285075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31654 (or 31649 counting only the distinct ones).

The product of its (nonzero) digits is 44800, while the sum is 38.

The square root of 128285075 is about 11326.3001461201. The cubic root of 128285075 is about 504.3422800409.

The spelling of 128285075 in words is "one hundred twenty-eight million, two hundred eighty-five thousand, seventy-five".