128302907 has 2 divisors, whose sum is σ = 128302908. Its totient is φ = 128302906.

The previous prime is 128302871. The next prime is 128302921. The reversal of 128302907 is 709203821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128302907 - 2⁶ = 128302843 is a prime.

It is a Chen prime.

It is equal to p_7287224 and since 128302907 and 7287224 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (128305907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64151453 + 64151454.

It is an arithmetic number, because the mean of its divisors is an integer number (64151454).

Almost surely, 2^128302907 is an apocalyptic number.

128302907 is a deficient number, since it is larger than the sum of its proper divisors (1).

128302907 is an equidigital number, since it uses as much as digits as its factorization.

128302907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 128302907 is about 11327.0873131622. The cubic root of 128302907 is about 504.3656473081.

The spelling of 128302907 in words is "one hundred twenty-eight million, three hundred two thousand, nine hundred seven".