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144289 is a prime number
BaseRepresentation
bin100011001110100001
321022221001
4203032201
514104124
63032001
71140445
oct431641
9238831
10144289
1199452
126b601
13508a2
143a825
152cb44
hex233a1

144289 has 2 divisors, whose sum is σ = 144290. Its totient is φ = 144288.

The previous prime is 144271. The next prime is 144299. The reversal of 144289 is 982441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90000 + 54289 = 300^2 + 233^2 .

It is a cyclic number.

It is not a de Polignac number, because 144289 - 27 = 144161 is a prime.

It is not a weakly prime, because it can be changed into another prime (144259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 72144 + 72145.

It is an arithmetic number, because the mean of its divisors is an integer number (72145).

2144289 is an apocalyptic number.

It is an amenable number.

144289 is a deficient number, since it is larger than the sum of its proper divisors (1).

144289 is an equidigital number, since it uses as much as digits as its factorization.

144289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 28.

The square root of 144289 is about 379.8539192900. The cubic root of 144289 is about 52.4498690020.

It can be divided in two parts, 144 and 289, that multiplied together give a triangular number (41616 = T288).

The spelling of 144289 in words is "one hundred forty-four thousand, two hundred eighty-nine".