Search a number
-
+
217141061 is a prime number
BaseRepresentation
bin11001111000101…
…00111101000101
3120010120220112112
430330110331011
5421042003221
633314030405
75244445214
oct1474247505
9503526475
10217141061
11101630325
1260878405
1335ca9347
1420ba507b
15140e315b
hexcf14f45

217141061 has 2 divisors, whose sum is σ = 217141062. Its totient is φ = 217141060.

The previous prime is 217141033. The next prime is 217141069. The reversal of 217141061 is 160141712.

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., 123632161 + 93508900 = 11119^2 + 9670^2 .

It is a cyclic number.

It is not a de Polignac number, because 217141061 - 26 = 217140997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (217141069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 108570530 + 108570531.

It is an arithmetic number, because the mean of its divisors is an integer number (108570531).

Almost surely, 2217141061 is an apocalyptic number.

It is an amenable number.

217141061 is a deficient number, since it is larger than the sum of its proper divisors (1).

217141061 is an equidigital number, since it uses as much as digits as its factorization.

217141061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 336, while the sum is 23.

The square root of 217141061 is about 14735.7070071307. The cubic root of 217141061 is about 601.0546829498.

Adding to 217141061 its reverse (160141712), we get a palindrome (377282773).

The spelling of 217141061 in words is "two hundred seventeen million, one hundred forty-one thousand, sixty-one".