11815073 has 2 divisors, whose sum is σ = 11815074. Its totient is φ = 11815072.

The previous prime is 11815043. The next prime is 11815079. The reversal of 11815073 is 37051811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11785489 + 29584 = 3433^2 + 172^2 .

It is a cyclic number.

It is not a de Polignac number, because 11815073 - 2⁶ = 11815009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11815079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5907536 + 5907537.

It is an arithmetic number, because the mean of its divisors is an integer number (5907537).

Almost surely, 2^11815073 is an apocalyptic number.

It is an amenable number.

11815073 is a deficient number, since it is larger than the sum of its proper divisors (1).

11815073 is an equidigital number, since it uses as much as digits as its factorization.

11815073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 26.

The square root of 11815073 is about 3437.3060672567. The cubic root of 11815073 is about 227.7607074435.

Adding to 11815073 its reverse (37051811), we get a palindrome (48866884).

The spelling of 11815073 in words is "eleven million, eight hundred fifteen thousand, seventy-three".