128642153 has 2 divisors, whose sum is σ = 128642154. Its totient is φ = 128642152.

The previous prime is 128642123. The next prime is 128642161. The reversal of 128642153 is 351246821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98644624 + 29997529 = 9932^2 + 5477^2 .

It is a cyclic number.

It is not a de Polignac number, because 128642153 - 2¹⁴ = 128625769 is a prime.

It is not a weakly prime, because it can be changed into another prime (128642123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64321076 + 64321077.

It is an arithmetic number, because the mean of its divisors is an integer number (64321077).

Almost surely, 2^128642153 is an apocalyptic number.

It is an amenable number.

128642153 is a deficient number, since it is larger than the sum of its proper divisors (1).

128642153 is an equidigital number, since it uses as much as digits as its factorization.

128642153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 32.

The square root of 128642153 is about 11342.0524156786. The cubic root of 128642153 is about 504.8097875280.

Adding to 128642153 its reverse (351246821), we get a palindrome (479888974).

The spelling of 128642153 in words is "one hundred twenty-eight million, six hundred forty-two thousand, one hundred fifty-three".