5144857 has 4 divisors (see below), whose sum is σ = 5149476. Its totient is φ = 5140240.

The previous prime is 5144851. The next prime is 5144879. The reversal of 5144857 is 7584415.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7584415 = 5 ⋅1516883.

It can be written as a sum of positive squares in 2 ways, for example, as 2359296 + 2785561 = 1536^2 + 1669^2 .

It is a cyclic number.

It is not a de Polignac number, because 5144857 - 2³ = 5144849 is a prime.

It is a Duffinian number.

5144857 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5144851) 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, 507 + ... + 3247.

It is an arithmetic number, because the mean of its divisors is an integer number (1287369).

Almost surely, 2^5144857 is an apocalyptic number.

It is an amenable number.

5144857 is a deficient number, since it is larger than the sum of its proper divisors (4619).

5144857 is a wasteful number, since it uses less digits than its factorization.

5144857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4618.

The product of its digits is 22400, while the sum is 34.

The square root of 5144857 is about 2268.2277222537. The cubic root of 5144857 is about 172.6332457855.

The spelling of 5144857 in words is "five million, one hundred forty-four thousand, eight hundred fifty-seven".