128168701 has 2 divisors, whose sum is σ = 128168702. Its totient is φ = 128168700.

The previous prime is 128168687. The next prime is 128168707. The reversal of 128168701 is 107861821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119377476 + 8791225 = 10926^2 + 2965^2 .

It is a cyclic number.

It is not a de Polignac number, because 128168701 - 2⁵ = 128168669 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (128168707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64084350 + 64084351.

It is an arithmetic number, because the mean of its divisors is an integer number (64084351).

Almost surely, 2^128168701 is an apocalyptic number.

It is an amenable number.

128168701 is a deficient number, since it is larger than the sum of its proper divisors (1).

128168701 is an equidigital number, since it uses as much as digits as its factorization.

128168701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 128168701 is about 11321.1616453436. The cubic root of 128168701 is about 504.1897289483.

The spelling of 128168701 in words is "one hundred twenty-eight million, one hundred sixty-eight thousand, seven hundred one".