128832101 has 2 divisors, whose sum is σ = 128832102. Its totient is φ = 128832100.

The previous prime is 128832097. The next prime is 128832139. The reversal of 128832101 is 101238821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 126112900 + 2719201 = 11230^2 + 1649^2 .

It is a cyclic number.

It is not a de Polignac number, because 128832101 - 2² = 128832097 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128832161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64416050 + 64416051.

It is an arithmetic number, because the mean of its divisors is an integer number (64416051).

Almost surely, 2^128832101 is an apocalyptic number.

It is an amenable number.

128832101 is a deficient number, since it is larger than the sum of its proper divisors (1).

128832101 is an equidigital number, since it uses as much as digits as its factorization.

128832101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 26.

The square root of 128832101 is about 11350.4229436616. The cubic root of 128832101 is about 505.0581261721.

The spelling of 128832101 in words is "one hundred twenty-eight million, eight hundred thirty-two thousand, one hundred one".