1148392549 has 2 divisors, whose sum is σ = 1148392550. Its totient is φ = 1148392548.

The previous prime is 1148392477. The next prime is 1148392559. The reversal of 1148392549 is 9452938411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1103435524 + 44957025 = 33218^2 + 6705^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148392549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1148392499 and 1148392508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1148392559) 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, 574196274 + 574196275.

It is an arithmetic number, because the mean of its divisors is an integer number (574196275).

Almost surely, 2^1148392549 is an apocalyptic number.

It is an amenable number.

1148392549 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148392549 is an equidigital number, since it uses as much as digits as its factorization.

1148392549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 46.

The square root of 1148392549 is about 33887.9410557797. The cubic root of 1148392549 is about 1047.2011778373.

The spelling of 1148392549 in words is "one billion, one hundred forty-eight million, three hundred ninety-two thousand, five hundred forty-nine".