128523763 has 2 divisors, whose sum is σ = 128523764. Its totient is φ = 128523762.

The previous prime is 128523713. The next prime is 128523779. The reversal of 128523763 is 367325821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 128523763 - 2²⁵ = 94969331 is a prime.

It is not a weakly prime, because it can be changed into another prime (128523713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64261881 + 64261882.

It is an arithmetic number, because the mean of its divisors is an integer number (64261882).

Almost surely, 2^128523763 is an apocalyptic number.

128523763 is a deficient number, since it is larger than the sum of its proper divisors (1).

128523763 is an equidigital number, since it uses as much as digits as its factorization.

128523763 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 60480, while the sum is 37.

The square root of 128523763 is about 11336.8321412994. The cubic root of 128523763 is about 504.6548803622.

It can be divided in two parts, 128523 and 763, that added together give a triangular number (129286 = T₅₀₈).

The spelling of 128523763 in words is "one hundred twenty-eight million, five hundred twenty-three thousand, seven hundred sixty-three".