128754523 has 2 divisors, whose sum is σ = 128754524. Its totient is φ = 128754522.

The previous prime is 128754517. The next prime is 128754533. The reversal of 128754523 is 325457821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 128754523 - 2²¹ = 126657371 is a prime.

It is not a weakly prime, because it can be changed into another prime (128754533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64377261 + 64377262.

It is an arithmetic number, because the mean of its divisors is an integer number (64377262).

Almost surely, 2^128754523 is an apocalyptic number.

128754523 is a deficient number, since it is larger than the sum of its proper divisors (1).

128754523 is an equidigital number, since it uses as much as digits as its factorization.

128754523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 67200, while the sum is 37.

The square root of 128754523 is about 11347.0050233531. The cubic root of 128754523 is about 504.9567299461.

The spelling of 128754523 in words is "one hundred twenty-eight million, seven hundred fifty-four thousand, five hundred twenty-three".