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13151387897 is a prime number
BaseRepresentation
bin11000011111110001…
…00100000011111001
31020221112122201121122
430033320210003321
5203413223403042
610012555515025
7643621644524
oct141770440371
936845581548
1013151387897
11563968541a
122670458a75
13131786853b
148ca8d5bbb
1551e8a77d2
hex30fe240f9

13151387897 has 2 divisors, whose sum is σ = 13151387898. Its totient is φ = 13151387896.

The previous prime is 13151387813. The next prime is 13151387911. The reversal of 13151387897 is 79878315131.

13151387897 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11703128761 + 1448259136 = 108181^2 + 38056^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13151387897 is a prime.

It is not a weakly prime, because it can be changed into another prime (13151387497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6575693948 + 6575693949.

It is an arithmetic number, because the mean of its divisors is an integer number (6575693949).

Almost surely, 213151387897 is an apocalyptic number.

It is an amenable number.

13151387897 is a deficient number, since it is larger than the sum of its proper divisors (1).

13151387897 is an equidigital number, since it uses as much as digits as its factorization.

13151387897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 53.

The spelling of 13151387897 in words is "thirteen billion, one hundred fifty-one million, three hundred eighty-seven thousand, eight hundred ninety-seven".