1125623 has 4 divisors (see below), whose sum is σ = 1130688. Its totient is φ = 1120560.

The previous prime is 1125599. The next prime is 1125629. The reversal of 1125623 is 3265211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3265211 = 1217 ⋅2683.

It is a cyclic number.

It is not a de Polignac number, because 1125623 - 2⁶ = 1125559 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1125595 and 1125604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125629) 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, 2183 + ... + 2648.

It is an arithmetic number, because the mean of its divisors is an integer number (282672).

2^1125623 is an apocalyptic number.

1125623 is a deficient number, since it is larger than the sum of its proper divisors (5065).

1125623 is an equidigital number, since it uses as much as digits as its factorization.

1125623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5064.

The product of its digits is 360, while the sum is 20.

The square root of 1125623 is about 1060.9538161485. The cubic root of 1125623 is about 104.0233860131.

The spelling of 1125623 in words is "one million, one hundred twenty-five thousand, six hundred twenty-three".