128268703 has 2 divisors, whose sum is σ = 128268704. Its totient is φ = 128268702.

The previous prime is 128268697. The next prime is 128268709. The reversal of 128268703 is 307862821.

It is a balanced prime because it is at equal distance from previous prime (128268697) and next prime (128268709).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128268703 is a prime.

It is a super-4 number, since 4×128268703⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128268709) 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, 64134351 + 64134352.

It is an arithmetic number, because the mean of its divisors is an integer number (64134352).

Almost surely, 2^128268703 is an apocalyptic number.

128268703 is a deficient number, since it is larger than the sum of its proper divisors (1).

128268703 is an equidigital number, since it uses as much as digits as its factorization.

128268703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 128268703 is about 11325.5773804252. The cubic root of 128268703 is about 504.3208240685.

The spelling of 128268703 in words is "one hundred twenty-eight million, two hundred sixty-eight thousand, seven hundred three".