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130143161 is a prime number
BaseRepresentation
bin1111100000111…
…01001110111001
3100001212221212002
413300131032321
5231304040121
620525230345
73140125061
oct760351671
9301787762
10130143161
116750a535
12377023b5
1320c689b5
14133da3a1
15b65ae0b
hex7c1d3b9

130143161 has 2 divisors, whose sum is σ = 130143162. Its totient is φ = 130143160.

The previous prime is 130143157. The next prime is 130143191. The reversal of 130143161 is 161341031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104448400 + 25694761 = 10220^2 + 5069^2 .

It is a cyclic number.

It is not a de Polignac number, because 130143161 - 22 = 130143157 is a prime.

It is not a weakly prime, because it can be changed into another prime (130143121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65071580 + 65071581.

It is an arithmetic number, because the mean of its divisors is an integer number (65071581).

Almost surely, 2130143161 is an apocalyptic number.

It is an amenable number.

130143161 is a deficient number, since it is larger than the sum of its proper divisors (1).

130143161 is an equidigital number, since it uses as much as digits as its factorization.

130143161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 130143161 is about 11408.0305486968. The cubic root of 130143161 is about 506.7655887087.

Adding to 130143161 its reverse (161341031), we get a palindrome (291484192).

The spelling of 130143161 in words is "one hundred thirty million, one hundred forty-three thousand, one hundred sixty-one".