128464067 has 4 divisors (see below), whose sum is σ = 129030216. Its totient is φ = 127897920.

The previous prime is 128464009. The next prime is 128464099. The reversal of 128464067 is 760464821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 760464821 = 401 ⋅1896421.

It is a cyclic number.

It is not a de Polignac number, because 128464067 - 2¹⁶ = 128398531 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 128464067.

It is not an unprimeable number, because it can be changed into a prime (128464667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282734 + ... + 283187.

It is an arithmetic number, because the mean of its divisors is an integer number (32257554).

Almost surely, 2^128464067 is an apocalyptic number.

128464067 is a deficient number, since it is larger than the sum of its proper divisors (566149).

128464067 is an equidigital number, since it uses as much as digits as its factorization.

128464067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566148.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 128464067 is about 11334.1990012528. The cubic root of 128464067 is about 504.5767351683.

The spelling of 128464067 in words is "one hundred twenty-eight million, four hundred sixty-four thousand, sixty-seven".