128836907 has 2 divisors, whose sum is σ = 128836908. Its totient is φ = 128836906.

The previous prime is 128836871. The next prime is 128836909. The reversal of 128836907 is 709638821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128836907 - 2¹² = 128832811 is a prime.

Together with 128836909, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128836909) 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, 64418453 + 64418454.

It is an arithmetic number, because the mean of its divisors is an integer number (64418454).

Almost surely, 2^128836907 is an apocalyptic number.

128836907 is a deficient number, since it is larger than the sum of its proper divisors (1).

128836907 is an equidigital number, since it uses as much as digits as its factorization.

128836907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145152, while the sum is 44.

The square root of 128836907 is about 11350.6346518598. The cubic root of 128836907 is about 505.0644063853.

The spelling of 128836907 in words is "one hundred twenty-eight million, eight hundred thirty-six thousand, nine hundred seven".