1129223 has 4 divisors (see below), whose sum is σ = 1155528. Its totient is φ = 1102920.

The previous prime is 1129217. The next prime is 1129229. The reversal of 1129223 is 3229211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3229211 = 1019 ⋅3169.

It is an interprime number because it is at equal distance from previous prime (1129217) and next prime (1129229).

It is a cyclic number.

It is not a de Polignac number, because 1129223 - 2⁶ = 1129159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1129195 and 1129204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1129229) 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, 13088 + ... + 13173.

It is an arithmetic number, because the mean of its divisors is an integer number (288882).

2^1129223 is an apocalyptic number.

1129223 is a deficient number, since it is larger than the sum of its proper divisors (26305).

1129223 is an equidigital number, since it uses as much as digits as its factorization.

1129223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26304.

The product of its digits is 216, while the sum is 20.

The square root of 1129223 is about 1062.6490483692. The cubic root of 1129223 is about 104.1341648644.

The spelling of 1129223 in words is "one million, one hundred twenty-nine thousand, two hundred twenty-three".