128414201 has 4 divisors (see below), whose sum is σ = 128782500. Its totient is φ = 128045904.

The previous prime is 128414159. The next prime is 128414203. The reversal of 128414201 is 102414821.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 102414400 + 25999801 = 10120^2 + 5099^2 .

It is a cyclic number.

It is not a de Polignac number, because 128414201 - 2⁶ = 128414137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128414203) 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, 183626 + ... + 184323.

It is an arithmetic number, because the mean of its divisors is an integer number (32195625).

Almost surely, 2^128414201 is an apocalyptic number.

It is an amenable number.

128414201 is a deficient number, since it is larger than the sum of its proper divisors (368299).

128414201 is an equidigital number, since it uses as much as digits as its factorization.

128414201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368298.

The product of its (nonzero) digits is 512, while the sum is 23.

The square root of 128414201 is about 11331.9989851747. The cubic root of 128414201 is about 504.5114394001.

Adding to 128414201 its sum of digits (23), we get a square (128414224 = 11332²).

The spelling of 128414201 in words is "one hundred twenty-eight million, four hundred fourteen thousand, two hundred one".