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4125281 is a prime number
BaseRepresentation
bin1111101111001001100001
321202120211012
433233021201
52024002111
6224230305
750031026
oct17571141
97676735
104125281
112368426
12146b395
13b158c4
1479554d
1556748b
hex3ef261

4125281 has 2 divisors, whose sum is σ = 4125282. Its totient is φ = 4125280.

The previous prime is 4125259. The next prime is 4125287. The reversal of 4125281 is 1825214.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2190400 + 1934881 = 1480^2 + 1391^2 .

It is a cyclic number.

It is not a de Polignac number, because 4125281 - 210 = 4124257 is a prime.

It is a super-2 number, since 2×41252812 = 34035886657922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4125287) 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, 2062640 + 2062641.

It is an arithmetic number, because the mean of its divisors is an integer number (2062641).

Almost surely, 24125281 is an apocalyptic number.

It is an amenable number.

4125281 is a deficient number, since it is larger than the sum of its proper divisors (1).

4125281 is an equidigital number, since it uses as much as digits as its factorization.

4125281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 640, while the sum is 23.

The square root of 4125281 is about 2031.0787773988. The cubic root of 4125281 is about 160.3803581025.

The spelling of 4125281 in words is "four million, one hundred twenty-five thousand, two hundred eighty-one".