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1025241317 is a prime number
BaseRepresentation
bin111101000110111…
…111000011100101
32122110011122200122
4331012333003211
54044430210232
6245422251325
734256256512
oct7506770345
92573148618
101025241317
114867a3a81
12247426b45
13134537189
149a23c309
156001a312
hex3d1bf0e5

1025241317 has 2 divisors, whose sum is σ = 1025241318. Its totient is φ = 1025241316.

The previous prime is 1025241293. The next prime is 1025241319. The reversal of 1025241317 is 7131425201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 823345636 + 201895681 = 28694^2 + 14209^2 .

It is an emirp because it is prime and its reverse (7131425201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1025241317 - 218 = 1024979173 is a prime.

It is a super-2 number, since 2×10252413172 = 2102239516167788978, which contains 22 as substring.

Together with 1025241319, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1025241319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 512620658 + 512620659.

It is an arithmetic number, because the mean of its divisors is an integer number (512620659).

Almost surely, 21025241317 is an apocalyptic number.

It is an amenable number.

1025241317 is a deficient number, since it is larger than the sum of its proper divisors (1).

1025241317 is an equidigital number, since it uses as much as digits as its factorization.

1025241317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1025241317 is about 32019.3897037405. The cubic root of 1025241317 is about 1008.3439570737.

Adding to 1025241317 its reverse (7131425201), we get a palindrome (8156666518).

The spelling of 1025241317 in words is "one billion, twenty-five million, two hundred forty-one thousand, three hundred seventeen".