1144857 has 8 divisors (see below), whose sum is σ = 1744576. Its totient is φ = 654192.

The previous prime is 1144837. The next prime is 1144867. The reversal of 1144857 is 7584411.

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

It is not a de Polignac number, because 1144857 - 2¹¹ = 1142809 is a prime.

It is a Duffinian number.

1144857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1144837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27238 + ... + 27279.

It is an arithmetic number, because the mean of its divisors is an integer number (218072).

2^1144857 is an apocalyptic number.

It is an amenable number.

1144857 is a deficient number, since it is larger than the sum of its proper divisors (599719).

1144857 is an equidigital number, since it uses as much as digits as its factorization.

1144857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54527.

The product of its digits is 4480, while the sum is 30.

The square root of 1144857 is about 1069.9799063534. The cubic root of 1144857 is about 104.6125402502.

The spelling of 1144857 in words is "one million, one hundred forty-four thousand, eight hundred fifty-seven".