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4145872227257 is a prime number
BaseRepresentation
bin111100010101001001001…
…111011100101110111001
3112200100012222000122002202
4330111021033130232321
51020411221242233012
612452330514035545
7605346402324365
oct74251117345671
915610188018082
104145872227257
111359288875a92
1256b5b8278bb5
13240c5313a6c7
141049387da2a5
1572c9c4c5cc2
hex3c5493dcbb9

4145872227257 has 2 divisors, whose sum is σ = 4145872227258. Its totient is φ = 4145872227256.

The previous prime is 4145872227247. The next prime is 4145872227307. The reversal of 4145872227257 is 7527222785414.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3023213310121 + 1122658917136 = 1738739^2 + 1059556^2 .

It is a cyclic number.

It is not a de Polignac number, because 4145872227257 - 226 = 4145805118393 is a prime.

It is not a weakly prime, because it can be changed into another prime (4145872227247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2072936113628 + 2072936113629.

It is an arithmetic number, because the mean of its divisors is an integer number (2072936113629).

Almost surely, 24145872227257 is an apocalyptic number.

It is an amenable number.

4145872227257 is a deficient number, since it is larger than the sum of its proper divisors (1).

4145872227257 is an equidigital number, since it uses as much as digits as its factorization.

4145872227257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17561600, while the sum is 56.

The spelling of 4145872227257 in words is "four trillion, one hundred forty-five billion, eight hundred seventy-two million, two hundred twenty-seven thousand, two hundred fifty-seven".