128147 has 2 divisors, whose sum is σ = 128148. Its totient is φ = 128146.

The previous prime is 128119. The next prime is 128153. The reversal of 128147 is 741821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128147 - 2¹⁰ = 127123 is a prime.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 128147.

It is not a weakly prime, because it can be changed into another prime (128047) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64073 + 64074.

It is an arithmetic number, because the mean of its divisors is an integer number (64074).

2¹²⁸¹⁴⁷ is an apocalyptic number.

128147 is a deficient number, since it is larger than the sum of its proper divisors (1).

128147 is an equidigital number, since it uses as much as digits as its factorization.

128147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 23.

The square root of 128147 is about 357.9762561959. The cubic root of 128147 is about 50.4161271562.

Adding to 128147 its reverse (741821), we get a palindrome (869968).

It can be divided in two parts, 12814 and 7, that multiplied together give a palindrome (89698).

The spelling of 128147 in words is "one hundred twenty-eight thousand, one hundred forty-seven".