128882801 has 2 divisors, whose sum is σ = 128882802. Its totient is φ = 128882800.

The previous prime is 128882791. The next prime is 128882807. The reversal of 128882801 is 108288821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71487025 + 57395776 = 8455^2 + 7576^2 .

It is an emirp because it is prime and its reverse (108288821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128882801 - 2⁶ = 128882737 is a prime.

It is a super-2 number, since 2×128882801² = 33221552787211202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128882807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64441400 + 64441401.

It is an arithmetic number, because the mean of its divisors is an integer number (64441401).

Almost surely, 2^128882801 is an apocalyptic number.

It is an amenable number.

128882801 is a deficient number, since it is larger than the sum of its proper divisors (1).

128882801 is an equidigital number, since it uses as much as digits as its factorization.

128882801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16384, while the sum is 38.

The square root of 128882801 is about 11352.6561209261. The cubic root of 128882801 is about 505.1243702436.

The spelling of 128882801 in words is "one hundred twenty-eight million, eight hundred eighty-two thousand, eight hundred one".