1284540001 has 4 divisors (see below), whose sum is σ = 1284622612. Its totient is φ = 1284457392.

The previous prime is 1284539983. The next prime is 1284540073. The reversal of 1284540001 is 1000454821.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1000454821 = 1493 ⋅670097.

It can be written as a sum of positive squares in 2 ways, for example, as 873261601 + 411278400 = 29551^2 + 20280^2 .

It is a cyclic number.

It is not a de Polignac number, because 1284540001 - 2¹⁹ = 1284015713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1284540091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10146 + ... + 51691.

It is an arithmetic number, because the mean of its divisors is an integer number (321155653).

Almost surely, 2^1284540001 is an apocalyptic number.

It is an amenable number.

1284540001 is a deficient number, since it is larger than the sum of its proper divisors (82611).

1284540001 is an equidigital number, since it uses as much as digits as its factorization.

1284540001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82610.

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

The square root of 1284540001 is about 35840.4799214519. The cubic root of 1284540001 is about 1087.0492255349.

Adding to 1284540001 its reverse (1000454821), we get a palindrome (2284994822).

The spelling of 1284540001 in words is "one billion, two hundred eighty-four million, five hundred forty thousand, one".