1123858 has 8 divisors (see below), whose sum is σ = 1711152. Its totient is φ = 553476.

The previous prime is 1123841. The next prime is 1123867. The reversal of 1123858 is 8583211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4060 + ... + 4327.

It is an arithmetic number, because the mean of its divisors is an integer number (213894).

2^1123858 is an apocalyptic number.

1123858 is a deficient number, since it is larger than the sum of its proper divisors (587294).

1123858 is an equidigital number, since it uses as much as digits as its factorization.

1123858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8456.

The product of its digits is 1920, while the sum is 28.

The square root of 1123858 is about 1060.1216911280. The cubic root of 1123858 is about 103.9689873013.

The spelling of 1123858 in words is "one million, one hundred twenty-three thousand, eight hundred fifty-eight".