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7129361 is a prime number
BaseRepresentation
bin11011001100100100010001
3111102012122102
4123030210101
53311114421
6412450145
7114412211
oct33144421
914365572
107129361
11402a438
122479955
131628075
14d38241
1595c60b
hex6cc911

7129361 has 2 divisors, whose sum is σ = 7129362. Its totient is φ = 7129360.

The previous prime is 7129337. The next prime is 7129373. The reversal of 7129361 is 1639217.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4000000 + 3129361 = 2000^2 + 1769^2 .

It is an emirp because it is prime and its reverse (1639217) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7129361 - 222 = 2935057 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (7129301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3564680 + 3564681.

It is an arithmetic number, because the mean of its divisors is an integer number (3564681).

Almost surely, 27129361 is an apocalyptic number.

It is an amenable number.

7129361 is a deficient number, since it is larger than the sum of its proper divisors (1).

7129361 is an equidigital number, since it uses as much as digits as its factorization.

7129361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The square root of 7129361 is about 2670.0863281924. The cubic root of 7129361 is about 192.4643077695.

The spelling of 7129361 in words is "seven million, one hundred twenty-nine thousand, three hundred sixty-one".