128852939 has 2 divisors, whose sum is σ = 128852940. Its totient is φ = 128852938.

The previous prime is 128852891. The next prime is 128852947. The reversal of 128852939 is 939258821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128852939 - 2⁸ = 128852683 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 128852893 and 128852902.

It is not a weakly prime, because it can be changed into another prime (128852989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64426469 + 64426470.

It is an arithmetic number, because the mean of its divisors is an integer number (64426470).

Almost surely, 2^128852939 is an apocalyptic number.

128852939 is a deficient number, since it is larger than the sum of its proper divisors (1).

128852939 is an equidigital number, since it uses as much as digits as its factorization.

128852939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 311040, while the sum is 47.

The square root of 128852939 is about 11351.3408459089. The cubic root of 128852939 is about 505.0853549807.

The spelling of 128852939 in words is "one hundred twenty-eight million, eight hundred fifty-two thousand, nine hundred thirty-nine".