128067465 has 16 divisors (see below), whose sum is σ = 208382400. Its totient is φ = 67144512.

The previous prime is 128067461. The next prime is 128067481. The reversal of 128067465 is 564760821.

It is not a de Polignac number, because 128067465 - 2² = 128067461 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128067461) 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 15 ways as a sum of consecutive naturals, for example, 71470 + ... + 73239.

It is an arithmetic number, because the mean of its divisors is an integer number (13023900).

Almost surely, 2^128067465 is an apocalyptic number.

128067465 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128067465 is a deficient number, since it is larger than the sum of its proper divisors (80314935).

128067465 is a wasteful number, since it uses less digits than its factorization.

128067465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144776.

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 128067465 is about 11316.6896661524. The cubic root of 128067465 is about 504.0569466707.

The spelling of 128067465 in words is "one hundred twenty-eight million, sixty-seven thousand, four hundred sixty-five".