1128235393 has 2 divisors, whose sum is σ = 1128235394. Its totient is φ = 1128235392.

The previous prime is 1128235373. The next prime is 1128235411. The reversal of 1128235393 is 3935328211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1119036304 + 9199089 = 33452^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128235393 - 2²¹ = 1126138241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1128235313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564117696 + 564117697.

It is an arithmetic number, because the mean of its divisors is an integer number (564117697).

Almost surely, 2^1128235393 is an apocalyptic number.

It is an amenable number.

1128235393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128235393 is an equidigital number, since it uses as much as digits as its factorization.

1128235393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 1128235393 is about 33589.2154269789. The cubic root of 1128235393 is about 1041.0379778107.

The spelling of 1128235393 in words is "one billion, one hundred twenty-eight million, two hundred thirty-five thousand, three hundred ninety-three".