1123407 has 6 divisors (see below), whose sum is σ = 1622712. Its totient is φ = 748932.

The previous prime is 1123403. The next prime is 1123427. The reversal of 1123407 is 7043211.

It is not a de Polignac number, because 1123407 - 2² = 1123403 is a prime.

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1123407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 62403 + ... + 62420.

It is an arithmetic number, because the mean of its divisors is an integer number (270452).

2^1123407 is an apocalyptic number.

1123407 is a deficient number, since it is larger than the sum of its proper divisors (499305).

1123407 is a wasteful number, since it uses less digits than its factorization.

1123407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124829 (or 124826 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 1123407 is about 1059.9089583544. The cubic root of 1123407 is about 103.9550779857.

Adding to 1123407 its reverse (7043211), we get a palindrome (8166618).

The spelling of 1123407 in words is "one million, one hundred twenty-three thousand, four hundred seven".