128741713 has 4 divisors (see below), whose sum is σ = 128770560. Its totient is φ = 128712868.

The previous prime is 128741707. The next prime is 128741719. The reversal of 128741713 is 317147821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (128741707) and next prime (128741719).

It is a cyclic number.

It is not a de Polignac number, because 128741713 - 2⁹ = 128741201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128741719) 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, 6145 + ... + 17182.

It is an arithmetic number, because the mean of its divisors is an integer number (32192640).

Almost surely, 2^128741713 is an apocalyptic number.

It is an amenable number.

128741713 is a deficient number, since it is larger than the sum of its proper divisors (28847).

128741713 is an equidigital number, since it uses as much as digits as its factorization.

128741713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28846.

The product of its digits is 9408, while the sum is 34.

The square root of 128741713 is about 11346.4405431836. The cubic root of 128741713 is about 504.9399830646.

The spelling of 128741713 in words is "one hundred twenty-eight million, seven hundred forty-one thousand, seven hundred thirteen".