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12545442017 is a prime number
BaseRepresentation
bin10111010111100010…
…00100000011100001
31012101022110111010122
423223301010003201
5201143113121032
65432512210025
7622613332463
oct135361040341
935338414118
1012545442017
1153586362a9
122521539915
13124c16a494
14870242133
154d65b3012
hex2ebc440e1

12545442017 has 2 divisors, whose sum is σ = 12545442018. Its totient is φ = 12545442016.

The previous prime is 12545441983. The next prime is 12545442029. The reversal of 12545442017 is 71024454521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10033828561 + 2511613456 = 100169^2 + 50116^2 .

It is a cyclic number.

It is not a de Polignac number, because 12545442017 - 210 = 12545440993 is a prime.

It is not a weakly prime, because it can be changed into another prime (12545442317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6272721008 + 6272721009.

It is an arithmetic number, because the mean of its divisors is an integer number (6272721009).

Almost surely, 212545442017 is an apocalyptic number.

It is an amenable number.

12545442017 is a deficient number, since it is larger than the sum of its proper divisors (1).

12545442017 is an equidigital number, since it uses as much as digits as its factorization.

12545442017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 44800, while the sum is 35.

Adding to 12545442017 its reverse (71024454521), we get a palindrome (83569896538).

The spelling of 12545442017 in words is "twelve billion, five hundred forty-five million, four hundred forty-two thousand, seventeen".