1123417 has 4 divisors (see below), whose sum is σ = 1125540. Its totient is φ = 1121296.

The previous prime is 1123403. The next prime is 1123427. The reversal of 1123417 is 7143211.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 8281 + 1115136 = 91^2 + 1056^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123417 - 2¹¹ = 1121369 is a prime.

It is a Duffinian number.

1123417 is a lucky number.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1123394 and 1123403.

It is not an unprimeable number, because it can be changed into a prime (1123427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 459 + ... + 1567.

It is an arithmetic number, because the mean of its divisors is an integer number (281385).

2^1123417 is an apocalyptic number.

It is an amenable number.

1123417 is a deficient number, since it is larger than the sum of its proper divisors (2123).

1123417 is a wasteful number, since it uses less digits than its factorization.

1123417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122.

The product of its digits is 168, while the sum is 19.

The square root of 1123417 is about 1059.9136757302. The cubic root of 1123417 is about 103.9553864366.

Adding to 1123417 its reverse (7143211), we get a palindrome (8266628).

It can be divided in two parts, 1123 and 417, that added together give a triangular number (1540 = T₅₅).

The spelling of 1123417 in words is "one million, one hundred twenty-three thousand, four hundred seventeen".