256201201 has 2 divisors, whose sum is σ = 256201202. Its totient is φ = 256201200.

The previous prime is 256201199. The next prime is 256201207. The reversal of 256201201 is 102102652.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200250801 + 55950400 = 14151^2 + 7480^2 .

It is a cyclic number.

It is not a de Polignac number, because 256201201 - 2¹ = 256201199 is a prime.

Together with 256201199, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (256201207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128100600 + 128100601.

It is an arithmetic number, because the mean of its divisors is an integer number (128100601).

Almost surely, 2^256201201 is an apocalyptic number.

It is an amenable number.

256201201 is a deficient number, since it is larger than the sum of its proper divisors (1).

256201201 is an equidigital number, since it uses as much as digits as its factorization.

256201201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 256201201 is about 16006.2862963275. The cubic root of 256201201 is about 635.1267244552.

Adding to 256201201 its reverse (102102652), we get a palindrome (358303853).

The spelling of 256201201 in words is "two hundred fifty-six million, two hundred one thousand, two hundred one".