1145822473 has 2 divisors, whose sum is σ = 1145822474. Its totient is φ = 1145822472.

The previous prime is 1145822459. The next prime is 1145822507. The reversal of 1145822473 is 3742285411.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 829267209 + 316555264 = 28797^2 + 17792^2 .

It is an emirp because it is prime and its reverse (3742285411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1145822473 - 2¹⁷ = 1145691401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1145822443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572911236 + 572911237.

It is an arithmetic number, because the mean of its divisors is an integer number (572911237).

Almost surely, 2^1145822473 is an apocalyptic number.

It is an amenable number.

1145822473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145822473 is an equidigital number, since it uses as much as digits as its factorization.

1145822473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53760, while the sum is 37.

The square root of 1145822473 is about 33849.9996011817. Note that the first 3 decimals coincide. The cubic root of 1145822473 is about 1046.4193903233.

The spelling of 1145822473 in words is "one billion, one hundred forty-five million, eight hundred twenty-two thousand, four hundred seventy-three".