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7140361 is a prime number
BaseRepresentation
bin11011001111010000001001
3111102202201211
4123033100021
53311442421
6413013121
7114456244
oct33172011
914382654
107140361
114037728
1224841a1
131630087
14d3c25b
159609e1
hex6cf409

7140361 has 2 divisors, whose sum is σ = 7140362. Its totient is φ = 7140360.

The previous prime is 7140359. The next prime is 7140379. The reversal of 7140361 is 1630417.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6943225 + 197136 = 2635^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 7140361 - 21 = 7140359 is a prime.

Together with 7140359, 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 (7140311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3570180 + 3570181.

It is an arithmetic number, because the mean of its divisors is an integer number (3570181).

Almost surely, 27140361 is an apocalyptic number.

It is an amenable number.

7140361 is a deficient number, since it is larger than the sum of its proper divisors (1).

7140361 is an equidigital number, since it uses as much as digits as its factorization.

7140361 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 7140361 is about 2672.1453927509. The cubic root of 7140361 is about 192.5632422779.

Adding to 7140361 its reverse (1630417), we get a palindrome (8770778).

The spelling of 7140361 in words is "seven million, one hundred forty thousand, three hundred sixty-one".