1224141869 has 2 divisors, whose sum is σ = 1224141870. Its totient is φ = 1224141868.

The previous prime is 1224141827. The next prime is 1224141871. The reversal of 1224141869 is 9681414221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1152942025 + 71199844 = 33955^2 + 8438^2 .

It is an emirp because it is prime and its reverse (9681414221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224141869 - 2¹⁶ = 1224076333 is a prime.

It is a super-2 number, since 2×1224141869² = 2997046630877626322, which contains 22 as substring.

Together with 1224141871, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224141889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612070934 + 612070935.

It is an arithmetic number, because the mean of its divisors is an integer number (612070935).

Almost surely, 2^1224141869 is an apocalyptic number.

It is an amenable number.

1224141869 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224141869 is an equidigital number, since it uses as much as digits as its factorization.

1224141869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 1224141869 is about 34987.7388380558. The cubic root of 1224141869 is about 1069.7375747387.

Subtracting from 1224141869 its product of digits (27648), we obtain a palindrome (1224114221).

The spelling of 1224141869 in words is "one billion, two hundred twenty-four million, one hundred forty-one thousand, eight hundred sixty-nine".