128045459 has 4 divisors (see below), whose sum is σ = 128326104. Its totient is φ = 127764816.

The previous prime is 128045441. The next prime is 128045471. The reversal of 128045459 is 954540821.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 128045459 - 2²⁴ = 111268243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122045459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 139637 + ... + 140550.

It is an arithmetic number, because the mean of its divisors is an integer number (32081526).

Almost surely, 2^128045459 is an apocalyptic number.

128045459 is a deficient number, since it is larger than the sum of its proper divisors (280645).

128045459 is an equidigital number, since it uses as much as digits as its factorization.

128045459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280644.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 128045459 is about 11315.7173435890. The cubic root of 128045459 is about 504.0280740954.

The spelling of 128045459 in words is "one hundred twenty-eight million, forty-five thousand, four hundred fifty-nine".