1273916383 has 2 divisors, whose sum is σ = 1273916384. Its totient is φ = 1273916382.

The previous prime is 1273916381. The next prime is 1273916393. The reversal of 1273916383 is 3836193721.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1273916383 - 2¹ = 1273916381 is a prime.

Together with 1273916381, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1273916381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 636958191 + 636958192.

It is an arithmetic number, because the mean of its divisors is an integer number (636958192).

Almost surely, 2^1273916383 is an apocalyptic number.

1273916383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1273916383 is an equidigital number, since it uses as much as digits as its factorization.

1273916383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 1273916383 is about 35691.9652442955. The cubic root of 1273916383 is about 1084.0441603515.

The spelling of 1273916383 in words is "one billion, two hundred seventy-three million, nine hundred sixteen thousand, three hundred eighty-three".