1123567 has 2 divisors, whose sum is σ = 1123568. Its totient is φ = 1123566.

The previous prime is 1123561. The next prime is 1123589. The reversal of 1123567 is 7653211.

It is a weak prime.

It is an emirp because it is prime and its reverse (7653211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1123567 - 2⁷ = 1123439 is a prime.

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1123561) 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 as a sum of consecutive naturals, namely, 561783 + 561784.

It is an arithmetic number, because the mean of its divisors is an integer number (561784).

2^1123567 is an apocalyptic number.

1123567 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123567 is an equidigital number, since it uses as much as digits as its factorization.

1123567 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1260, while the sum is 25.

The square root of 1123567 is about 1059.9844338480. The cubic root of 1123567 is about 103.9600129804.

Adding to 1123567 its reverse (7653211), we get a palindrome (8776778).

The spelling of 1123567 in words is "one million, one hundred twenty-three thousand, five hundred sixty-seven".