128775151 has 2 divisors, whose sum is σ = 128775152. Its totient is φ = 128775150.

The previous prime is 128775149. The next prime is 128775161. The reversal of 128775151 is 151577821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128775151 - 2¹ = 128775149 is a prime.

Together with 128775149, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 128775151.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128775121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64387575 + 64387576.

It is an arithmetic number, because the mean of its divisors is an integer number (64387576).

Almost surely, 2^128775151 is an apocalyptic number.

128775151 is a deficient number, since it is larger than the sum of its proper divisors (1).

128775151 is an equidigital number, since it uses as much as digits as its factorization.

128775151 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19600, while the sum is 37.

The square root of 128775151 is about 11347.9139492684. The cubic root of 128775151 is about 504.9836951897.

The spelling of 128775151 in words is "one hundred twenty-eight million, seven hundred seventy-five thousand, one hundred fifty-one".