283121 has 2 divisors, whose sum is σ = 283122. Its totient is φ = 283120.

The previous prime is 283117. The next prime is 283133. The reversal of 283121 is 121382.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 190096 + 93025 = 436^2 + 305^2 .

It is a cyclic number.

It is not a de Polignac number, because 283121 - 2² = 283117 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 283121.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 283121.

It is not a weakly prime, because it can be changed into another prime (283111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141560 + 141561.

It is an arithmetic number, because the mean of its divisors is an integer number (141561).

2²⁸³¹²¹ is an apocalyptic number.

It is an amenable number.

283121 is a deficient number, since it is larger than the sum of its proper divisors (1).

283121 is an equidigital number, since it uses as much as digits as its factorization.

283121 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 283121 is about 532.0911576037. The cubic root of 283121 is about 65.6635000091.

It can be divided in two parts, 283 and 121, that multiplied together give a palindrome (34243).

The spelling of 283121 in words is "two hundred eighty-three thousand, one hundred twenty-one".