1125243 has 24 divisors (see below), whose sum is σ = 1898208. Its totient is φ = 628992.

The previous prime is 1125221. The next prime is 1125253. The reversal of 1125243 is 3425211.

It is not a de Polignac number, because 1125243 - 2⁸ = 1124987 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1125203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3171 + ... + 3507.

It is an arithmetic number, because the mean of its divisors is an integer number (79092).

2^1125243 is an apocalyptic number.

1125243 is a deficient number, since it is larger than the sum of its proper divisors (772965).

1125243 is a wasteful number, since it uses less digits than its factorization.

1125243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403 (or 400 counting only the distinct ones).

The product of its digits is 240, while the sum is 18.

The square root of 1125243 is about 1060.7747168933. The cubic root of 1125243 is about 104.0116789153.

Subtracting 1125243 from its reverse (3425211), we obtain a cube (2299968 = 132³).

The spelling of 1125243 in words is "one million, one hundred twenty-five thousand, two hundred forty-three".