128161713 has 8 divisors (see below), whose sum is σ = 171079776. Its totient is φ = 85342400.

The previous prime is 128161697. The next prime is 128161723. The reversal of 128161713 is 317161821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128161713 - 2⁴ = 128161697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128161723) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21603 + ... + 26888.

It is an arithmetic number, because the mean of its divisors is an integer number (21384972).

Almost surely, 2^128161713 is an apocalyptic number.

It is an amenable number.

128161713 is a deficient number, since it is larger than the sum of its proper divisors (42918063).

128161713 is an equidigital number, since it uses as much as digits as its factorization.

128161713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49375.

The product of its digits is 2016, while the sum is 30.

The square root of 128161713 is about 11320.8530155638. The cubic root of 128161713 is about 504.1805656559.

The spelling of 128161713 in words is "one hundred twenty-eight million, one hundred sixty-one thousand, seven hundred thirteen".