1123378 has 8 divisors (see below), whose sum is σ = 1739520.
Its totient is φ = 543540.
The previous prime is 1123361. The next prime is 1123379. The reversal of 1123378 is 8733211.
Adding to 1123378 its reverse (8733211), we get a palindrome (9856589).
It can be divided in two parts, 11233 and 78, that added together give a palindrome (11311).
It is a sphenic number, since it is the product of 3 distinct primes.
It is a plaindrome in base 10.
It is not an unprimeable number, because it can be changed into a prime (1123379) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (7) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8998 + ... + 9121.
It is an arithmetic number, because the mean of its divisors is an integer number (217440).
21123378 is an apocalyptic number.
1123378 is a deficient number, since it is larger than the sum of its proper divisors (616142).
1123378 is a wasteful number, since it uses less digits than its factorization.
1123378 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 18152.
The product of its digits is 1008, while the sum is 25.
The square root of 1123378 is about 1059.8952778459.
The cubic root of 1123378 is about 103.9541834677.
The spelling of 1123378 in words is "one million, one hundred twenty-three thousand, three hundred seventy-eight".