11545823 has 4 divisors (see below), whose sum is σ = 11554248. Its totient is φ = 11537400.

The previous prime is 11545817. The next prime is 11545829. The reversal of 11545823 is 32854511.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (11545817) and next prime (11545829).

It is a cyclic number.

It is not a de Polignac number, because 11545823 - 2¹² = 11541727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545829) by changing a digit.

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, 1628 + ... + 5073.

It is an arithmetic number, because the mean of its divisors is an integer number (2888562).

Almost surely, 2^11545823 is an apocalyptic number.

11545823 is a deficient number, since it is larger than the sum of its proper divisors (8425).

11545823 is an equidigital number, since it uses as much as digits as its factorization.

11545823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8424.

The product of its digits is 4800, while the sum is 29.

The square root of 11545823 is about 3397.9145074590. The cubic root of 11545823 is about 226.0172735903.

The spelling of 11545823 in words is "eleven million, five hundred forty-five thousand, eight hundred twenty-three".