11813073 has 4 divisors (see below), whose sum is σ = 15750768. Its totient is φ = 7875380.

The previous prime is 11813071. The next prime is 11813083. The reversal of 11813073 is 37031811.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11813073 - 2¹ = 11813071 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11813071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1968843 + ... + 1968848.

It is an arithmetic number, because the mean of its divisors is an integer number (3937692).

Almost surely, 2^11813073 is an apocalyptic number.

It is an amenable number.

11813073 is a deficient number, since it is larger than the sum of its proper divisors (3937695).

11813073 is an equidigital number, since it uses as much as digits as its factorization.

11813073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937694.

The product of its (nonzero) digits is 504, while the sum is 24.

The square root of 11813073 is about 3437.0151294401. The cubic root of 11813073 is about 227.7478552978.

Adding to 11813073 its reverse (37031811), we get a palindrome (48844884).

The spelling of 11813073 in words is "eleven million, eight hundred thirteen thousand, seventy-three".