1211314459 has 2 divisors, whose sum is σ = 1211314460. Its totient is φ = 1211314458.

The previous prime is 1211314439. The next prime is 1211314487. The reversal of 1211314459 is 9544131121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211314459 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211314459.

It is not a weakly prime, because it can be changed into another prime (1211314439) 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, 605657229 + 605657230.

It is an arithmetic number, because the mean of its divisors is an integer number (605657230).

Almost surely, 2^1211314459 is an apocalyptic number.

1211314459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211314459 is an equidigital number, since it uses as much as digits as its factorization.

1211314459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 31.

The square root of 1211314459 is about 34803.9431530394. The cubic root of 1211314459 is about 1065.9879622632.

The spelling of 1211314459 in words is "one billion, two hundred eleven million, three hundred fourteen thousand, four hundred fifty-nine".