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258143 is a prime number
BaseRepresentation
bin111111000001011111
3111010002212
4333001133
531230033
65311035
72123414
oct770137
9433085
10258143
11166a46
1210547b
1390662
146a10b
1551748
hex3f05f

258143 has 2 divisors, whose sum is σ = 258144. Its totient is φ = 258142.

The previous prime is 258131. The next prime is 258157. The reversal of 258143 is 341852.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 258143 - 24 = 258127 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (258113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 129071 + 129072.

It is an arithmetic number, because the mean of its divisors is an integer number (129072).

2258143 is an apocalyptic number.

258143 is a deficient number, since it is larger than the sum of its proper divisors (1).

258143 is an equidigital number, since it uses as much as digits as its factorization.

258143 is an evil number, because the sum of its binary digits is even.

The product of its digits is 960, while the sum is 23.

The square root of 258143 is about 508.0777499557. The cubic root of 258143 is about 63.6727270835.

Adding to 258143 its reverse (341852), we get a palindrome (599995).

The spelling of 258143 in words is "two hundred fifty-eight thousand, one hundred forty-three".