1273362263 has 2 divisors, whose sum is σ = 1273362264. Its totient is φ = 1273362262.

The previous prime is 1273362257. The next prime is 1273362281. The reversal of 1273362263 is 3622633721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1273362263 - 2¹² = 1273358167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273362253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636681131 + 636681132.

It is an arithmetic number, because the mean of its divisors is an integer number (636681132).

Almost surely, 2^1273362263 is an apocalyptic number.

1273362263 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273362263 is an equidigital number, since it uses as much as digits as its factorization.

1273362263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 35.

The square root of 1273362263 is about 35684.2018686141. The cubic root of 1273362263 is about 1083.8869606917.

Adding to 1273362263 its reverse (3622633721), we get a palindrome (4895995984).

The spelling of 1273362263 in words is "one billion, two hundred seventy-three million, three hundred sixty-two thousand, two hundred sixty-three".