1213182073 has 2 divisors, whose sum is σ = 1213182074. Its totient is φ = 1213182072.

The previous prime is 1213182071. The next prime is 1213182133. The reversal of 1213182073 is 3702813121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1212919929 + 262144 = 34827^2 + 512^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213182073 - 2¹ = 1213182071 is a prime.

Together with 1213182071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1213182071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606591036 + 606591037.

It is an arithmetic number, because the mean of its divisors is an integer number (606591037).

Almost surely, 2^1213182073 is an apocalyptic number.

It is an amenable number.

1213182073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213182073 is an equidigital number, since it uses as much as digits as its factorization.

1213182073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1213182073 is about 34830.7633134848. The cubic root of 1213182073 is about 1066.5355304391.

Adding to 1213182073 its reverse (3702813121), we get a palindrome (4915995194).

The spelling of 1213182073 in words is "one billion, two hundred thirteen million, one hundred eighty-two thousand, seventy-three".