128612207 has 2 divisors, whose sum is σ = 128612208. Its totient is φ = 128612206.

The previous prime is 128612201. The next prime is 128612213. The reversal of 128612207 is 702216821.

It is a balanced prime because it is at equal distance from previous prime (128612201) and next prime (128612213).

It is a cyclic number.

It is not a de Polignac number, because 128612207 - 2¹⁸ = 128350063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128612207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128612201) 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, 64306103 + 64306104.

It is an arithmetic number, because the mean of its divisors is an integer number (64306104).

Almost surely, 2^128612207 is an apocalyptic number.

128612207 is a deficient number, since it is larger than the sum of its proper divisors (1).

128612207 is an equidigital number, since it uses as much as digits as its factorization.

128612207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 128612207 is about 11340.7322074018. The cubic root of 128612207 is about 504.7706137251.

The spelling of 128612207 in words is "one hundred twenty-eight million, six hundred twelve thousand, two hundred seven".