128260193 has 2 divisors, whose sum is σ = 128260194. Its totient is φ = 128260192.

The previous prime is 128260169. The next prime is 128260211. The reversal of 128260193 is 391062821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120736144 + 7524049 = 10988^2 + 2743^2 .

It is a cyclic number.

It is not a de Polignac number, because 128260193 - 2¹⁶ = 128194657 is a prime.

It is not a weakly prime, because it can be changed into another prime (128260163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64130096 + 64130097.

It is an arithmetic number, because the mean of its divisors is an integer number (64130097).

Almost surely, 2^128260193 is an apocalyptic number.

It is an amenable number.

128260193 is a deficient number, since it is larger than the sum of its proper divisors (1).

128260193 is an equidigital number, since it uses as much as digits as its factorization.

128260193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 128260193 is about 11325.2016759085. The cubic root of 128260193 is about 504.3096707499.

The spelling of 128260193 in words is "one hundred twenty-eight million, two hundred sixty thousand, one hundred ninety-three".