1385233393 has 2 divisors, whose sum is σ = 1385233394. Its totient is φ = 1385233392.

The previous prime is 1385233307. The next prime is 1385233411. The reversal of 1385233393 is 3933325831.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1154436529 + 230796864 = 33977^2 + 15192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1385233393 - 2²⁵ = 1351678961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1385230393) 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, 692616696 + 692616697.

It is an arithmetic number, because the mean of its divisors is an integer number (692616697).

Almost surely, 2^1385233393 is an apocalyptic number.

It is an amenable number.

1385233393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1385233393 is an equidigital number, since it uses as much as digits as its factorization.

1385233393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 174960, while the sum is 40.

The square root of 1385233393 is about 37218.7236884878. The cubic root of 1385233393 is about 1114.7418796954.

The spelling of 1385233393 in words is "one billion, three hundred eighty-five million, two hundred thirty-three thousand, three hundred ninety-three".