1153423 has 4 divisors (see below), whose sum is σ = 1156000. Its totient is φ = 1150848.

The previous prime is 1153421. The next prime is 1153429. The reversal of 1153423 is 3243511.

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 1153423 - 2¹ = 1153421 is a prime.

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 1153423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 423 + ... + 1576.

It is an arithmetic number, because the mean of its divisors is an integer number (289000).

2^1153423 is an apocalyptic number.

1153423 is a deficient number, since it is larger than the sum of its proper divisors (2577).

1153423 is an equidigital number, since it uses as much as digits as its factorization.

1153423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576.

The product of its digits is 360, while the sum is 19.

The square root of 1153423 is about 1073.9753256011. The cubic root of 1153423 is about 104.8728013762.

Adding to 1153423 its reverse (3243511), we get a palindrome (4396934).

The spelling of 1153423 in words is "one million, one hundred fifty-three thousand, four hundred twenty-three".