1214423009 has 2 divisors, whose sum is σ = 1214423010. Its totient is φ = 1214423008.

The previous prime is 1214423003. The next prime is 1214423011. The reversal of 1214423009 is 9003244121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1198198225 + 16224784 = 34615^2 + 4028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1214423009 is a prime.

It is a super-2 number, since 2×1214423009² = 2949646489577228162, which contains 22 as substring.

Together with 1214423011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1214423003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607211504 + 607211505.

It is an arithmetic number, because the mean of its divisors is an integer number (607211505).

Almost surely, 2^1214423009 is an apocalyptic number.

It is an amenable number.

1214423009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214423009 is an equidigital number, since it uses as much as digits as its factorization.

1214423009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1214423009 is about 34848.5725532625. The cubic root of 1214423009 is about 1066.8990513979.

It can be divided in two parts, 12144 and 23009, that added together give a palindrome (35153).

The spelling of 1214423009 in words is "one billion, two hundred fourteen million, four hundred twenty-three thousand, nine".