128102347 has 2 divisors, whose sum is σ = 128102348. Its totient is φ = 128102346.

The previous prime is 128102339. The next prime is 128102353. The reversal of 128102347 is 743201821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128102347 - 2³ = 128102339 is a prime.

It is a super-2 number, since 2×128102347² = 32820422613816818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128106347) 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, 64051173 + 64051174.

It is an arithmetic number, because the mean of its divisors is an integer number (64051174).

Almost surely, 2^128102347 is an apocalyptic number.

128102347 is a deficient number, since it is larger than the sum of its proper divisors (1).

128102347 is an equidigital number, since it uses as much as digits as its factorization.

128102347 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 28.

The square root of 128102347 is about 11318.2307362944. The cubic root of 128102347 is about 504.1027061937.

The spelling of 128102347 in words is "one hundred twenty-eight million, one hundred two thousand, three hundred forty-seven".