1392803273 has 2 divisors, whose sum is σ = 1392803274. Its totient is φ = 1392803272.

The previous prime is 1392803233. The next prime is 1392803287. The reversal of 1392803273 is 3723082931.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 789216649 + 603586624 = 28093^2 + 24568^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1392803273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1392803233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 696401636 + 696401637.

It is an arithmetic number, because the mean of its divisors is an integer number (696401637).

Almost surely, 2^1392803273 is an apocalyptic number.

It is an amenable number.

1392803273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1392803273 is an equidigital number, since it uses as much as digits as its factorization.

1392803273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 1392803273 is about 37320.2796479340. The cubic root of 1392803273 is about 1116.7687673876.

The spelling of 1392803273 in words is "one billion, three hundred ninety-two million, eight hundred three thousand, two hundred seventy-three".