1125863 has 4 divisors (see below), whose sum is σ = 1128648. Its totient is φ = 1123080.

The previous prime is 1125857. The next prime is 1125871. The reversal of 1125863 is 3685211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1125863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1125823) 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, 656 + ... + 1637.

It is an arithmetic number, because the mean of its divisors is an integer number (282162).

2^1125863 is an apocalyptic number.

1125863 is a deficient number, since it is larger than the sum of its proper divisors (2785).

1125863 is an equidigital number, since it uses as much as digits as its factorization.

1125863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2784.

The product of its digits is 1440, while the sum is 26.

The square root of 1125863 is about 1061.0669158917. The cubic root of 1125863 is about 104.0307786121.

It can be divided in two parts, 112 and 5863, that multiplied together give a palindrome (656656).

The spelling of 1125863 in words is "one million, one hundred twenty-five thousand, eight hundred sixty-three".