128752243 has 2 divisors, whose sum is σ = 128752244. Its totient is φ = 128752242.

The previous prime is 128752231. The next prime is 128752249. The reversal of 128752243 is 342257821.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128752243 - 2⁹ = 128751731 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128752199 and 128752208.

It is not a weakly prime, because it can be changed into another prime (128752249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64376121 + 64376122.

It is an arithmetic number, because the mean of its divisors is an integer number (64376122).

Almost surely, 2^128752243 is an apocalyptic number.

128752243 is a deficient number, since it is larger than the sum of its proper divisors (1).

128752243 is an equidigital number, since it uses as much as digits as its factorization.

128752243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 26880, while the sum is 34.

The square root of 128752243 is about 11346.9045558690. The cubic root of 128752243 is about 504.9537493178.

The spelling of 128752243 in words is "one hundred twenty-eight million, seven hundred fifty-two thousand, two hundred forty-three".