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2072201 is a prime number
BaseRepresentation
bin111111001111010001001
310220021112012
413321322021
51012302301
6112225305
723420255
oct7717211
93807465
102072201
11119596a
1283b235
13577271
143bd265
152adebb
hex1f9e89

2072201 has 2 divisors, whose sum is σ = 2072202. Its totient is φ = 2072200.

The previous prime is 2072179. The next prime is 2072207. The reversal of 2072201 is 1022702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1752976 + 319225 = 1324^2 + 565^2 .

It is a cyclic number.

It is not a de Polignac number, because 2072201 - 218 = 1810057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2072207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1036100 + 1036101.

It is an arithmetic number, because the mean of its divisors is an integer number (1036101).

22072201 is an apocalyptic number.

It is an amenable number.

2072201 is a deficient number, since it is larger than the sum of its proper divisors (1).

2072201 is an equidigital number, since it uses as much as digits as its factorization.

2072201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56, while the sum is 14.

The square root of 2072201 is about 1439.5141541506. The cubic root of 2072201 is about 127.4903440079.

Adding to 2072201 its reverse (1022702), we get a palindrome (3094903).

The spelling of 2072201 in words is "two million, seventy-two thousand, two hundred one".