11506345 has 4 divisors (see below), whose sum is σ = 13807620. Its totient is φ = 9205072.

The previous prime is 11506337. The next prime is 11506393. The reversal of 11506345 is 54360511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8503056 + 3003289 = 2916^2 + 1733^2 .

It is a cyclic number.

It is not a de Polignac number, because 11506345 - 2³ = 11506337 is a prime.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1150630 + ... + 1150639.

It is an arithmetic number, because the mean of its divisors is an integer number (3451905).

Almost surely, 2^11506345 is an apocalyptic number.

It is an amenable number.

11506345 is a deficient number, since it is larger than the sum of its proper divisors (2301275).

11506345 is an equidigital number, since it uses as much as digits as its factorization.

11506345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2301274.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 11506345 is about 3392.1003817694. The cubic root of 11506345 is about 225.7593766021.

Adding to 11506345 its reverse (54360511), we get a palindrome (65866856).

The spelling of 11506345 in words is "eleven million, five hundred six thousand, three hundred forty-five".