128583297 has 12 divisors (see below), whose sum is σ = 187647460. Its totient is φ = 84837888.

The previous prime is 128583293. The next prime is 128583311. The reversal of 128583297 is 792385821.

It is a happy number.

128583297 is a `hidden beast` number, since 1 + 285 + 83 + 297 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 65999376 + 62583921 = 8124^2 + 7911^2 .

It is not a de Polignac number, because 128583297 - 2² = 128583293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128583293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72772 + ... + 74517.

Almost surely, 2^128583297 is an apocalyptic number.

It is an amenable number.

128583297 is a deficient number, since it is larger than the sum of its proper divisors (59064163).

128583297 is a wasteful number, since it uses less digits than its factorization.

128583297 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147392 (or 147389 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 128583297 is about 11339.4575267074. The cubic root of 128583297 is about 504.7327893942.

The spelling of 128583297 in words is "one hundred twenty-eight million, five hundred eighty-three thousand, two hundred ninety-seven".