1283 has 2 divisors, whose sum is σ = 1284. Its totient is φ = 1282.
The previous prime is 1279. The next prime is 1289. The reversal of 1283 is 3821.
It is a weak prime.
1283 is a truncatable prime.
It is an emirp because it is prime and its reverse (3821) is a distict prime.
It is a cyclic number.
It is not a de Polignac number, because 1283 - 22 = 1279 is a prime.
It is a Chen prime.
It is a plaindrome in base 12, base 13 and base 14.
It is not a weakly prime, because it can be changed into another prime (1289) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641 + 642.
It is an arithmetic number, because the mean of its divisors is an integer number (642).
1283 is a deficient number, since it is larger than the sum of its proper divisors (1).
1283 is an equidigital number, since it uses as much as digits as its factorization.
1283 is an evil number, because the sum of its binary digits is even.
The product of its digits is 48, while the sum is 14.
The square root of 1283 is about 35.8189893771. The cubic root of 1283 is about 10.8661464031.
Adding to 1283 its product of digits (48), we get a palindrome (1331).
It can be divided in two parts, 128 and 3, that added together give a palindrome (131).
The spelling of 1283 in words is "one thousand, two hundred eighty-three".
• e-mail: info -at- numbersaplenty.com • Privacy notice • done in 0.070 sec. • engine limits •