1123489 has 8 divisors (see below), whose sum is σ = 1224000. Its totient is φ = 1027152.

The previous prime is 1123487. The next prime is 1123501. The reversal of 1123489 is 9843211.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1123489 - 2¹ = 1123487 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1123483) 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 7 ways as a sum of consecutive naturals, for example, 469 + ... + 1570.

It is an arithmetic number, because the mean of its divisors is an integer number (153000).

2^1123489 is an apocalyptic number.

1123489 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1123489 is a deficient number, since it is larger than the sum of its proper divisors (100511).

1123489 is a wasteful number, since it uses less digits than its factorization.

1123489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2087.

The product of its digits is 1728, while the sum is 28.

The square root of 1123489 is about 1059.9476402163. The cubic root of 1123489 is about 103.9576072290.

The spelling of 1123489 in words is "one million, one hundred twenty-three thousand, four hundred eighty-nine".