128258201 has 2 divisors, whose sum is σ = 128258202. Its totient is φ = 128258200.

The previous prime is 128258161. The next prime is 128258203. The reversal of 128258201 is 102852821.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93624976 + 34633225 = 9676^2 + 5885^2 .

It is a cyclic number.

It is not a de Polignac number, because 128258201 - 2²² = 124063897 is a prime.

It is a super-2 number, since 2×128258201² = 32900332247512802, which contains 22 as substring.

Together with 128258203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (128258203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64129100 + 64129101.

It is an arithmetic number, because the mean of its divisors is an integer number (64129101).

Almost surely, 2^128258201 is an apocalyptic number.

It is an amenable number.

128258201 is a deficient number, since it is larger than the sum of its proper divisors (1).

128258201 is an equidigital number, since it uses as much as digits as its factorization.

128258201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2560, while the sum is 29.

The square root of 128258201 is about 11325.1137301133. The cubic root of 128258201 is about 504.3070599371.

The spelling of 128258201 in words is "one hundred twenty-eight million, two hundred fifty-eight thousand, two hundred one".