1148978293 has 2 divisors, whose sum is σ = 1148978294. Its totient is φ = 1148978292.

The previous prime is 1148978251. The next prime is 1148978297. The reversal of 1148978293 is 3928798411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1082278404 + 66699889 = 32898^2 + 8167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148978293 is a prime.

It is a super-2 number, since 2×1148978293² = 2640302235570387698, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1148978293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148978297) 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, 574489146 + 574489147.

It is an arithmetic number, because the mean of its divisors is an integer number (574489147).

Almost surely, 2^1148978293 is an apocalyptic number.

It is an amenable number.

1148978293 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148978293 is an equidigital number, since it uses as much as digits as its factorization.

1148978293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 1148978293 is about 33896.5823203461. The cubic root of 1148978293 is about 1047.3791911682.

The spelling of 1148978293 in words is "one billion, one hundred forty-eight million, nine hundred seventy-eight thousand, two hundred ninety-three".