128953757 has 2 divisors, whose sum is σ = 128953758. Its totient is φ = 128953756.

The previous prime is 128953753. The next prime is 128953771. The reversal of 128953757 is 757359821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 122456356 + 6497401 = 11066^2 + 2549^2 .

It is an emirp because it is prime and its reverse (757359821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128953757 - 2² = 128953753 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128953751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64476878 + 64476879.

It is an arithmetic number, because the mean of its divisors is an integer number (64476879).

Almost surely, 2^128953757 is an apocalyptic number.

It is an amenable number.

128953757 is a deficient number, since it is larger than the sum of its proper divisors (1).

128953757 is an equidigital number, since it uses as much as digits as its factorization.

128953757 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 529200, while the sum is 47.

The square root of 128953757 is about 11355.7807745659. The cubic root of 128953757 is about 505.2170514213.

The spelling of 128953757 in words is "one hundred twenty-eight million, nine hundred fifty-three thousand, seven hundred fifty-seven".