5257143 has 20 divisors (see below), whose sum is σ = 8049888. Its totient is φ = 3417120.

The previous prime is 5257121. The next prime is 5257157. The reversal of 5257143 is 3417525.

It is a happy number.

5257143 is a `hidden beast` number, since 52 + 571 + 43 = 666.

It is not a de Polignac number, because 5257143 - 2⁵ = 5257111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5257103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 2530 + ... + 4112.

Almost surely, 2^5257143 is an apocalyptic number.

5257143 is a deficient number, since it is larger than the sum of its proper divisors (2792745).

5257143 is a wasteful number, since it uses less digits than its factorization.

5257143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1636 (or 1627 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 5257143 is about 2292.8460480372. The cubic root of 5257143 is about 173.8801195655.

The spelling of 5257143 in words is "five million, two hundred fifty-seven thousand, one hundred forty-three".