11154423 has 8 divisors (see below), whose sum is σ = 16997248. Its totient is φ = 6373944.

The previous prime is 11154421. The next prime is 11154443. The reversal of 11154423 is 32445111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11154423 - 2¹ = 11154421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 531163 = 11154423 / (1 + 1 + 1 + 5 + 4 + 4 + 2 + 3).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11154423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11154421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 265561 + ... + 265602.

It is an arithmetic number, because the mean of its divisors is an integer number (2124656).

Almost surely, 2^11154423 is an apocalyptic number.

11154423 is a deficient number, since it is larger than the sum of its proper divisors (5842825).

11154423 is an equidigital number, since it uses as much as digits as its factorization.

11154423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531173.

The product of its digits is 480, while the sum is 21.

The square root of 11154423 is about 3339.8237977474. The cubic root of 11154423 is about 223.4338848226.

Adding to 11154423 its reverse (32445111), we get a palindrome (43599534).

The spelling of 11154423 in words is "eleven million, one hundred fifty-four thousand, four hundred twenty-three".