1154423 has 4 divisors (see below), whose sum is σ = 1165320. Its totient is φ = 1143528.

The previous prime is 1154411. The next prime is 1154431. The reversal of 1154423 is 3244511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3244511 = 227 ⋅14293.

It is a cyclic number.

It is not a de Polignac number, because 1154423 - 2⁶ = 1154359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1154395 and 1154404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1154473) 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, 5288 + ... + 5501.

It is an arithmetic number, because the mean of its divisors is an integer number (291330).

2^1154423 is an apocalyptic number.

1154423 is a deficient number, since it is larger than the sum of its proper divisors (10897).

1154423 is a wasteful number, since it uses less digits than its factorization.

1154423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10896.

The product of its digits is 480, while the sum is 20.

The square root of 1154423 is about 1074.4407847806. The cubic root of 1154423 is about 104.9031003236.

Adding to 1154423 its reverse (3244511), we get a palindrome (4398934).

The spelling of 1154423 in words is "one million, one hundred fifty-four thousand, four hundred twenty-three".