128563411 has 2 divisors, whose sum is σ = 128563412. Its totient is φ = 128563410.

The previous prime is 128563397. The next prime is 128563423. The reversal of 128563411 is 114365821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128563411 - 2⁹ = 128562899 is a prime.

It is not a weakly prime, because it can be changed into another prime (128563441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64281705 + 64281706.

It is an arithmetic number, because the mean of its divisors is an integer number (64281706).

Almost surely, 2^128563411 is an apocalyptic number.

128563411 is a deficient number, since it is larger than the sum of its proper divisors (1).

128563411 is an equidigital number, since it uses as much as digits as its factorization.

128563411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 31.

The square root of 128563411 is about 11338.5806430964. The cubic root of 128563411 is about 504.7067683014.

The spelling of 128563411 in words is "one hundred twenty-eight million, five hundred sixty-three thousand, four hundred eleven".