Search a number
-
+
130566251 is a prime number
BaseRepresentation
bin1111100100001…
…00100001101011
3100002200110020002
413302010201223
5231411110001
620542253215
73143536424
oct762044153
9302613202
10130566251
11677793a2
123788720b
132108644a
14134aa64b
15b6e146b
hex7c8486b

130566251 has 2 divisors, whose sum is σ = 130566252. Its totient is φ = 130566250.

The previous prime is 130566217. The next prime is 130566253. The reversal of 130566251 is 152665031.

It is a strong prime.

It is an emirp because it is prime and its reverse (152665031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130566251 - 26 = 130566187 is a prime.

Together with 130566253, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130566253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65283125 + 65283126.

It is an arithmetic number, because the mean of its divisors is an integer number (65283126).

Almost surely, 2130566251 is an apocalyptic number.

130566251 is a deficient number, since it is larger than the sum of its proper divisors (1).

130566251 is an equidigital number, since it uses as much as digits as its factorization.

130566251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 130566251 is about 11426.5590183572. The cubic root of 130566251 is about 507.3141526306.

The spelling of 130566251 in words is "one hundred thirty million, five hundred sixty-six thousand, two hundred fifty-one".