1385855323 has 2 divisors, whose sum is σ = 1385855324. Its totient is φ = 1385855322.

The previous prime is 1385855297. The next prime is 1385855327. The reversal of 1385855323 is 3235585831.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1385855323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1385855323.

It is not a weakly prime, because it can be changed into another prime (1385855327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 692927661 + 692927662.

It is an arithmetic number, because the mean of its divisors is an integer number (692927662).

Almost surely, 2^1385855323 is an apocalyptic number.

1385855323 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385855323 is an equidigital number, since it uses as much as digits as its factorization.

1385855323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432000, while the sum is 43.

The square root of 1385855323 is about 37227.0778197806. The cubic root of 1385855323 is about 1114.9086837614.

The spelling of 1385855323 in words is "one billion, three hundred eighty-five million, eight hundred fifty-five thousand, three hundred twenty-three".