1211064539 has 2 divisors, whose sum is σ = 1211064540. Its totient is φ = 1211064538.

The previous prime is 1211064527. The next prime is 1211064571. The reversal of 1211064539 is 9354601121.

It is an a-pointer prime, because the next prime (1211064571) can be obtained adding 1211064539 to its sum of digits (32).

It is a weak prime.

It is an emirp because it is prime and its reverse (9354601121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1211064539 - 2⁴ = 1211064523 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211064509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605532269 + 605532270.

It is an arithmetic number, because the mean of its divisors is an integer number (605532270).

Almost surely, 2^1211064539 is an apocalyptic number.

1211064539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211064539 is an equidigital number, since it uses as much as digits as its factorization.

1211064539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 1211064539 is about 34800.3525700531. The cubic root of 1211064539 is about 1065.9146452056.

The spelling of 1211064539 in words is "one billion, two hundred eleven million, sixty-four thousand, five hundred thirty-nine".