1145403449 has 2 divisors, whose sum is σ = 1145403450. Its totient is φ = 1145403448.

The previous prime is 1145403419. The next prime is 1145403461. The reversal of 1145403449 is 9443045411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1136161849 + 9241600 = 33707^2 + 3040^2 .

It is an emirp because it is prime and its reverse (9443045411) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1145403449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145403419) 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, 572701724 + 572701725.

It is an arithmetic number, because the mean of its divisors is an integer number (572701725).

Almost surely, 2^1145403449 is an apocalyptic number.

It is an amenable number.

1145403449 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145403449 is an equidigital number, since it uses as much as digits as its factorization.

1145403449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 1145403449 is about 33843.8096112125. The cubic root of 1145403449 is about 1046.2918172453.

The spelling of 1145403449 in words is "one billion, one hundred forty-five million, four hundred three thousand, four hundred forty-nine".