11542823 has 4 divisors (see below), whose sum is σ = 12150360. Its totient is φ = 10935288.

The previous prime is 11542801. The next prime is 11542829. The reversal of 11542823 is 32824511.

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

It is a cyclic number.

It is not a de Polignac number, because 11542823 - 2⁶ = 11542759 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11542792 and 11542801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11542829) 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, 303740 + ... + 303777.

It is an arithmetic number, because the mean of its divisors is an integer number (3037590).

Almost surely, 2^11542823 is an apocalyptic number.

11542823 is a deficient number, since it is larger than the sum of its proper divisors (607537).

11542823 is an equidigital number, since it uses as much as digits as its factorization.

11542823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 607536.

The product of its digits is 1920, while the sum is 26.

The square root of 11542823 is about 3397.4730315339. The cubic root of 11542823 is about 225.9976962200.

The spelling of 11542823 in words is "eleven million, five hundred forty-two thousand, eight hundred twenty-three".