1234216169 has 2 divisors, whose sum is σ = 1234216170. Its totient is φ = 1234216168.

The previous prime is 1234216157. The next prime is 1234216253. The reversal of 1234216169 is 9616124321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 657255769 + 576960400 = 25637^2 + 24020^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1234216169 is a prime.

It is a super-2 number, since 2×1234216169² = 3046579103642073122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1234216129) 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, 617108084 + 617108085.

It is an arithmetic number, because the mean of its divisors is an integer number (617108085).

Almost surely, 2^1234216169 is an apocalyptic number.

It is an amenable number.

1234216169 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234216169 is an equidigital number, since it uses as much as digits as its factorization.

1234216169 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 35.

The square root of 1234216169 is about 35131.4128523178. The cubic root of 1234216169 is about 1072.6640950969.

The spelling of 1234216169 in words is "one billion, two hundred thirty-four million, two hundred sixteen thousand, one hundred sixty-nine".