1284114821 has 4 divisors (see below), whose sum is σ = 1400852544. Its totient is φ = 1167377100.

The previous prime is 1284114787. The next prime is 1284114827.

1284114821 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1284114821 - 2¹⁴ = 1284098437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1284114827) 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, 58368845 + ... + 58368866.

It is an arithmetic number, because the mean of its divisors is an integer number (350213136).

Almost surely, 2^1284114821 is an apocalyptic number.

1284114821 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1284114821 is a deficient number, since it is larger than the sum of its proper divisors (116737723).

1284114821 is a wasteful number, since it uses less digits than its factorization.

1284114821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116737722.

The product of its digits is 4096, while the sum is 32.

The square root of 1284114821 is about 35834.5478693397. The cubic root of 1284114821 is about 1086.9292753079.

The spelling of 1284114821 in words is "one billion, two hundred eighty-four million, one hundred fourteen thousand, eight hundred twenty-one".