128071201 has 2 divisors, whose sum is σ = 128071202. Its totient is φ = 128071200.

The previous prime is 128071129. The next prime is 128071213. The reversal of 128071201 is 102170821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88078225 + 39992976 = 9385^2 + 6324^2 .

It is an emirp because it is prime and its reverse (102170821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 128071201 - 2¹⁵ = 128038433 is a prime.

It is not a weakly prime, because it can be changed into another prime (128071271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64035600 + 64035601.

It is an arithmetic number, because the mean of its divisors is an integer number (64035601).

Almost surely, 2^128071201 is an apocalyptic number.

It is an amenable number.

128071201 is a deficient number, since it is larger than the sum of its proper divisors (1).

128071201 is an equidigital number, since it uses as much as digits as its factorization.

128071201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 22.

The square root of 128071201 is about 11316.8547308870. The cubic root of 128071201 is about 504.0618480937.

The spelling of 128071201 in words is "one hundred twenty-eight million, seventy-one thousand, two hundred one".