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144161 is a prime number
BaseRepresentation
bin100011001100100001
321022202022
4203030201
514103121
63031225
71140203
oct431441
9238668
10144161
1199346
126b515
1350804
143a773
152caab
hex23321

144161 has 2 divisors, whose sum is σ = 144162. Its totient is φ = 144160.

The previous prime is 144139. The next prime is 144163. The reversal of 144161 is 161441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115600 + 28561 = 340^2 + 169^2 .

It is a cyclic number.

It is not a de Polignac number, because 144161 - 210 = 143137 is a prime.

Together with 144163, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 144161.

It is not a weakly prime, because it can be changed into another prime (144163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72080 + 72081.

It is an arithmetic number, because the mean of its divisors is an integer number (72081).

2144161 is an apocalyptic number.

It is an amenable number.

144161 is a deficient number, since it is larger than the sum of its proper divisors (1).

144161 is an equidigital number, since it uses as much as digits as its factorization.

144161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 17.

The square root of 144161 is about 379.6853960847. The cubic root of 144161 is about 52.4343548384.

The spelling of 144161 in words is "one hundred forty-four thousand, one hundred sixty-one".