128885371 has 2 divisors, whose sum is σ = 128885372. Its totient is φ = 128885370.

The previous prime is 128885363. The next prime is 128885389. The reversal of 128885371 is 173588821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128885371 - 2³ = 128885363 is a prime.

It is a super-2 number, since 2×128885371² = 33222877715615282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (128885971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64442685 + 64442686.

It is an arithmetic number, because the mean of its divisors is an integer number (64442686).

Almost surely, 2^128885371 is an apocalyptic number.

128885371 is a deficient number, since it is larger than the sum of its proper divisors (1).

128885371 is an equidigital number, since it uses as much as digits as its factorization.

128885371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 107520, while the sum is 43.

The square root of 128885371 is about 11352.7693097323. The cubic root of 128885371 is about 505.1277277151.

The spelling of 128885371 in words is "one hundred twenty-eight million, eight hundred eighty-five thousand, three hundred seventy-one".