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201010001 is a prime number
BaseRepresentation
bin10111111101100…
…10101101010001
3112000020100212212
423332302231101
5402424310001
631540201505
74660361663
oct1376625521
9460210785
10201010001
11a3512875
1257399295
133284bc3a
141c9a6533
15129a87bb
hexbfb2b51

201010001 has 2 divisors, whose sum is σ = 201010002. Its totient is φ = 201010000.

The previous prime is 201009997. The next prime is 201010027. The reversal of 201010001 is 100010102.

Adding to 201010001 its reverse (100010102), we get a palindrome (301020103).

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 140185600 + 60824401 = 11840^2 + 7799^2 .

It is a cyclic number.

It is not a de Polignac number, because 201010001 - 22 = 201009997 is a prime.

It is not a weakly prime, because it can be changed into another prime (201010081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100505000 + 100505001.

It is an arithmetic number, because the mean of its divisors is an integer number (100505001).

Almost surely, 2201010001 is an apocalyptic number.

It is an amenable number.

201010001 is a deficient number, since it is larger than the sum of its proper divisors (1).

201010001 is an equidigital number, since it uses as much as digits as its factorization.

201010001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 201010001 is about 14177.7995824458. The cubic root of 201010001 is about 585.7863154469.

The spelling of 201010001 in words is "two hundred one million, ten thousand, one".