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13185053597 is a prime number
BaseRepresentation
bin11000100011110001…
…11111001110011101
31021000220000010021102
430101320333032131
5204000333203342
610020201242445
7644511051332
oct142170771635
937026003242
1013185053597
115656689a11
12267b793425
131321824b81
148d117a989
15522807832
hex311e3f39d

13185053597 has 2 divisors, whose sum is σ = 13185053598. Its totient is φ = 13185053596.

The previous prime is 13185053573. The next prime is 13185053611. The reversal of 13185053597 is 79535058131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8027084836 + 5157968761 = 89594^2 + 71819^2 .

It is an emirp because it is prime and its reverse (79535058131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13185053597 - 226 = 13117944733 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13185053507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6592526798 + 6592526799.

It is an arithmetic number, because the mean of its divisors is an integer number (6592526799).

Almost surely, 213185053597 is an apocalyptic number.

It is an amenable number.

13185053597 is a deficient number, since it is larger than the sum of its proper divisors (1).

13185053597 is an equidigital number, since it uses as much as digits as its factorization.

13185053597 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 47.

The spelling of 13185053597 in words is "thirteen billion, one hundred eighty-five million, fifty-three thousand, five hundred ninety-seven".