1148660393 has 2 divisors, whose sum is σ = 1148660394. Its totient is φ = 1148660392.

The previous prime is 1148660389. The next prime is 1148660407. The reversal of 1148660393 is 3930668411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 626400784 + 522259609 = 25028^2 + 22853^2 .

It is an emirp because it is prime and its reverse (3930668411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1148660393 - 2² = 1148660389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1148660393.

It is not a weakly prime, because it can be changed into another prime (1148660593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 574330196 + 574330197.

It is an arithmetic number, because the mean of its divisors is an integer number (574330197).

Almost surely, 2^1148660393 is an apocalyptic number.

It is an amenable number.

1148660393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148660393 is an equidigital number, since it uses as much as digits as its factorization.

1148660393 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1148660393 is about 33891.8927326286. The cubic root of 1148660393 is about 1047.2825857581.

The spelling of 1148660393 in words is "one billion, one hundred forty-eight million, six hundred sixty thousand, three hundred ninety-three".