1123369 has 4 divisors (see below), whose sum is σ = 1209796. Its totient is φ = 1036944.

The previous prime is 1123361. The next prime is 1123379. The reversal of 1123369 is 9633211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9633211 = 7 ⋅1376173.

It can be written as a sum of positive squares in 2 ways, for example, as 462400 + 660969 = 680^2 + 813^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123369 - 2³ = 1123361 is a prime.

It is a super-2 number, since 2×1123369² = 2523915820322, which contains 22 as substring.

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 (1123361) 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, 43194 + ... + 43219.

It is an arithmetic number, because the mean of its divisors is an integer number (302449).

2^1123369 is an apocalyptic number.

It is an amenable number.

1123369 is a deficient number, since it is larger than the sum of its proper divisors (86427).

1123369 is an equidigital number, since it uses as much as digits as its factorization.

1123369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86426.

The product of its digits is 972, while the sum is 25.

The square root of 1123369 is about 1059.8910321349. The cubic root of 1123369 is about 103.9539058555.

It can be divided in two parts, 112 and 3369, that added together give a square (3481 = 59²).

The spelling of 1123369 in words is "one million, one hundred twenty-three thousand, three hundred sixty-nine".