1115901473 has 2 divisors, whose sum is σ = 1115901474. Its totient is φ = 1115901472.

The previous prime is 1115901443. The next prime is 1115901497. The reversal of 1115901473 is 3741095111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 577104529 + 538796944 = 24023^2 + 23212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1115901473 - 2¹⁰ = 1115900449 is a prime.

It is not a weakly prime, because it can be changed into another prime (1115901443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 557950736 + 557950737.

It is an arithmetic number, because the mean of its divisors is an integer number (557950737).

Almost surely, 2^1115901473 is an apocalyptic number.

It is an amenable number.

1115901473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115901473 is an equidigital number, since it uses as much as digits as its factorization.

1115901473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 32.

The square root of 1115901473 is about 33405.1114801313. Note that the first 3 decimals coincide. The cubic root of 1115901473 is about 1037.2305114750.

Adding to 1115901473 its reverse (3741095111), we get a palindrome (4856996584).

The spelling of 1115901473 in words is "one billion, one hundred fifteen million, nine hundred one thousand, four hundred seventy-three".