128297088 has 64 divisors (see below), whose sum is σ = 378664800. Its totient is φ = 42764544.

The previous prime is 128297087. The next prime is 128297089. The reversal of 128297088 is 880792821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (128297087) and next prime (128297089).

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (128297083) 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 7 ways as a sum of consecutive naturals, for example, 15106 + ... + 22017.

Almost surely, 2^128297088 is an apocalyptic number.

128297088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

128297088 is an abundant number, since it is smaller than the sum of its proper divisors (250367712).

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

128297088 is an equidigital number, since it uses as much as digits as its factorization.

128297088 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37146 (or 37128 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 45.

The square root of 128297088 is about 11326.8304480998. The cubic root of 128297088 is about 504.3580222585.

The spelling of 128297088 in words is "one hundred twenty-eight million, two hundred ninety-seven thousand, eighty-eight".