1232215273 has 2 divisors, whose sum is σ = 1232215274. Its totient is φ = 1232215272.

The previous prime is 1232215223. The next prime is 1232215297. The reversal of 1232215273 is 3725122321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 795070809 + 437144464 = 28197^2 + 20908^2 .

It is an emirp because it is prime and its reverse (3725122321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1232215273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1232215223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616107636 + 616107637.

It is an arithmetic number, because the mean of its divisors is an integer number (616107637).

Almost surely, 2^1232215273 is an apocalyptic number.

It is an amenable number.

1232215273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232215273 is an equidigital number, since it uses as much as digits as its factorization.

1232215273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5040, while the sum is 28.

The square root of 1232215273 is about 35102.9239950179. The cubic root of 1232215273 is about 1072.0841183087.

Adding to 1232215273 its reverse (3725122321), we get a palindrome (4957337594).

The spelling of 1232215273 in words is "one billion, two hundred thirty-two million, two hundred fifteen thousand, two hundred seventy-three".