128713067 has 4 divisors (see below), whose sum is σ = 147100656. Its totient is φ = 110325480.

The previous prime is 128713033. The next prime is 128713099. The reversal of 128713067 is 760317821.

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 128713067 - 2⁸ = 128712811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128713367) 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, 9193784 + ... + 9193797.

It is an arithmetic number, because the mean of its divisors is an integer number (36775164).

Almost surely, 2^128713067 is an apocalyptic number.

128713067 is a deficient number, since it is larger than the sum of its proper divisors (18387589).

128713067 is an equidigital number, since it uses as much as digits as its factorization.

128713067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18387588.

The product of its (nonzero) digits is 14112, while the sum is 35.

The square root of 128713067 is about 11345.1781387513. The cubic root of 128713067 is about 504.9025293045.

The spelling of 128713067 in words is "one hundred twenty-eight million, seven hundred thirteen thousand, sixty-seven".