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12506000237 is a prime number
BaseRepresentation
bin10111010010110101…
…00110101101101101
31012021120020122011222
423221122212231231
5201103014001422
65424542553125
7621624151043
oct135132465555
935246218158
1012506000237
115338347095
1225102987a5
131243c3aa53
14868cd6393
154d2dc1842
hex2e96a6b6d

12506000237 has 2 divisors, whose sum is σ = 12506000238. Its totient is φ = 12506000236.

The previous prime is 12506000209. The next prime is 12506000239. The reversal of 12506000237 is 73200060521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6435408841 + 6070591396 = 80221^2 + 77914^2 .

It is a cyclic number.

It is not a de Polignac number, because 12506000237 - 28 = 12505999981 is a prime.

Together with 12506000239, 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 (12506000239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6253000118 + 6253000119.

It is an arithmetic number, because the mean of its divisors is an integer number (6253000119).

Almost surely, 212506000237 is an apocalyptic number.

It is an amenable number.

12506000237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12506000237 is an equidigital number, since it uses as much as digits as its factorization.

12506000237 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 26.

Adding to 12506000237 its reverse (73200060521), we get a palindrome (85706060758).

The spelling of 12506000237 in words is "twelve billion, five hundred six million, two hundred thirty-seven", and thus it is an aban number.