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130135231 is a prime number
BaseRepresentation
bin1111100000110…
…11010010111111
3100001212112222101
413300123102333
5231303311411
620525125531
73140063002
oct760332277
9301775871
10130135231
1167504586
12376b98a7
1320c651c5
14133d7539
15b6588c1
hex7c1b4bf

130135231 has 2 divisors, whose sum is σ = 130135232. Its totient is φ = 130135230.

The previous prime is 130135183. The next prime is 130135277. The reversal of 130135231 is 132531031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130135231 - 215 = 130102463 is a prime.

It is a super-2 number, since 2×1301352312 = 33870356694846722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 130135199 and 130135208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130139231) 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, 65067615 + 65067616.

It is an arithmetic number, because the mean of its divisors is an integer number (65067616).

Almost surely, 2130135231 is an apocalyptic number.

130135231 is a deficient number, since it is larger than the sum of its proper divisors (1).

130135231 is an equidigital number, since it uses as much as digits as its factorization.

130135231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 130135231 is about 11407.6829812193. The cubic root of 130135231 is about 506.7552956010.

Adding to 130135231 its reverse (132531031), we get a palindrome (262666262).

The spelling of 130135231 in words is "one hundred thirty million, one hundred thirty-five thousand, two hundred thirty-one".