1123169 has 4 divisors (see below), whose sum is σ = 1125396. Its totient is φ = 1120944.

The previous prime is 1123151. The next prime is 1123181. The reversal of 1123169 is 9613211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9613211 = 17 ⋅565483.

It can be written as a sum of positive squares in 2 ways, for example, as 616225 + 506944 = 785^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123169 - 2¹⁶ = 1057633 is a prime.

It is a super-2 number, since 2×1123169² = 2523017205122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1123189) 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, 47 + ... + 1499.

It is an arithmetic number, because the mean of its divisors is an integer number (281349).

2^1123169 is an apocalyptic number.

It is an amenable number.

1123169 is a deficient number, since it is larger than the sum of its proper divisors (2227).

1123169 is an equidigital number, since it uses as much as digits as its factorization.

1123169 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2226.

The product of its digits is 324, while the sum is 23.

The square root of 1123169 is about 1059.7966786134. The cubic root of 1123169 is about 103.9477363140.

The spelling of 1123169 in words is "one million, one hundred twenty-three thousand, one hundred sixty-nine".