128795441 has 2 divisors, whose sum is σ = 128795442. Its totient is φ = 128795440.

The previous prime is 128795419. The next prime is 128795453. The reversal of 128795441 is 144597821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82283041 + 46512400 = 9071^2 + 6820^2 .

It is an emirp because it is prime and its reverse (144597821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128795441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128795411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64397720 + 64397721.

It is an arithmetic number, because the mean of its divisors is an integer number (64397721).

Almost surely, 2^128795441 is an apocalyptic number.

It is an amenable number.

128795441 is a deficient number, since it is larger than the sum of its proper divisors (1).

128795441 is an equidigital number, since it uses as much as digits as its factorization.

128795441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 41.

The square root of 128795441 is about 11348.8079109658. The cubic root of 128795441 is about 505.0102157852.

The spelling of 128795441 in words is "one hundred twenty-eight million, seven hundred ninety-five thousand, four hundred forty-one".