128164613 has 2 divisors, whose sum is σ = 128164614. Its totient is φ = 128164612.

The previous prime is 128164583. The next prime is 128164627. The reversal of 128164613 is 316461821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79959364 + 48205249 = 8942^2 + 6943^2 .

It is a cyclic number.

It is not a de Polignac number, because 128164613 - 2⁸ = 128164357 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 128164613.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128164643) 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 as a sum of consecutive naturals, namely, 64082306 + 64082307.

It is an arithmetic number, because the mean of its divisors is an integer number (64082307).

Almost surely, 2^128164613 is an apocalyptic number.

It is an amenable number.

128164613 is a deficient number, since it is larger than the sum of its proper divisors (1).

128164613 is an equidigital number, since it uses as much as digits as its factorization.

128164613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 32.

The square root of 128164613 is about 11320.9810970604. The cubic root of 128164613 is about 504.1843684364.

The spelling of 128164613 in words is "one hundred twenty-eight million, one hundred sixty-four thousand, six hundred thirteen".