1282399 has 2 divisors, whose sum is σ = 1282400. Its totient is φ = 1282398.

The previous prime is 1282387. The next prime is 1282417. The reversal of 1282399 is 9932821.

It is a weak prime.

It is an emirp because it is prime and its reverse (9932821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1282399 - 2¹⁵ = 1249631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1282349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641199 + 641200.

It is an arithmetic number, because the mean of its divisors is an integer number (641200).

2^1282399 is an apocalyptic number.

1282399 is a deficient number, since it is larger than the sum of its proper divisors (1).

1282399 is an equidigital number, since it uses as much as digits as its factorization.

1282399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 34.

The square root of 1282399 is about 1132.4305718233. The cubic root of 1282399 is about 108.6444944957.

It can be divided in two parts, 1282 and 399, that added together give a square (1681 = 41²).

The spelling of 1282399 in words is "one million, two hundred eighty-two thousand, three hundred ninety-nine".