1214444009 has 2 divisors, whose sum is σ = 1214444010. Its totient is φ = 1214444008.

The previous prime is 1214443981. The next prime is 1214444017. The reversal of 1214444009 is 9004444121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 735928384 + 478515625 = 27128^2 + 21875^2 .

It is an emirp because it is prime and its reverse (9004444121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214444009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1214444039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607222004 + 607222005.

It is an arithmetic number, because the mean of its divisors is an integer number (607222005).

Almost surely, 2^1214444009 is an apocalyptic number.

It is an amenable number.

1214444009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214444009 is an equidigital number, since it uses as much as digits as its factorization.

1214444009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 1214444009 is about 34848.8738555495. The cubic root of 1214444009 is about 1066.9052010264.

The spelling of 1214444009 in words is "one billion, two hundred fourteen million, four hundred forty-four thousand, nine".