1284541 has 2 divisors, whose sum is σ = 1284542. Its totient is φ = 1284540.

The previous prime is 1284523. The next prime is 1284551. The reversal of 1284541 is 1454821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1232100 + 52441 = 1110^2 + 229^2 .

It is an emirp because it is prime and its reverse (1454821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1284541 - 2¹¹ = 1282493 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1284511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 642270 + 642271.

It is an arithmetic number, because the mean of its divisors is an integer number (642271).

2^1284541 is an apocalyptic number.

It is an amenable number.

1284541 is a deficient number, since it is larger than the sum of its proper divisors (1).

1284541 is an equidigital number, since it uses as much as digits as its factorization.

1284541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 25.

The square root of 1284541 is about 1133.3759305720. The cubic root of 1284541 is about 108.7049507338.

Adding to 1284541 its product of digits (1280), we get a palindrome (1285821).

The spelling of 1284541 in words is "one million, two hundred eighty-four thousand, five hundred forty-one".