1148249441 has 2 divisors, whose sum is σ = 1148249442. Its totient is φ = 1148249440.

The previous prime is 1148249413. The next prime is 1148249497. The reversal of 1148249441 is 1449428411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 904265041 + 243984400 = 30071^2 + 15620^2 .

It is an emirp because it is prime and its reverse (1449428411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1148249441 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1148249395 and 1148249404.

It is not a weakly prime, because it can be changed into another prime (1148249741) 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, 574124720 + 574124721.

It is an arithmetic number, because the mean of its divisors is an integer number (574124721).

Almost surely, 2^1148249441 is an apocalyptic number.

It is an amenable number.

1148249441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1148249441 is an equidigital number, since it uses as much as digits as its factorization.

1148249441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36864, while the sum is 38.

The square root of 1148249441 is about 33885.8295014302. The cubic root of 1148249441 is about 1047.1576767158.

The spelling of 1148249441 in words is "one billion, one hundred forty-eight million, two hundred forty-nine thousand, four hundred forty-one".