1125043 has 4 divisors (see below), whose sum is σ = 1191240. Its totient is φ = 1058848.

The previous prime is 1125029. The next prime is 1125053. The reversal of 1125043 is 3405211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3405211 = 479 ⋅7109.

It is a cyclic number.

It is not a de Polignac number, because 1125043 - 2⁹ = 1124531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125013) 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, 33073 + ... + 33106.

It is an arithmetic number, because the mean of its divisors is an integer number (297810).

2^1125043 is an apocalyptic number.

1125043 is a deficient number, since it is larger than the sum of its proper divisors (66197).

1125043 is an equidigital number, since it uses as much as digits as its factorization.

1125043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66196.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1125043 is about 1060.6804419805. The cubic root of 1125043 is about 104.0055162261.

The spelling of 1125043 in words is "one million, one hundred twenty-five thousand, forty-three".