5128571 has 4 divisors (see below), whose sum is σ = 5861232. Its totient is φ = 4395912.

The previous prime is 5128553. The next prime is 5128573. The reversal of 5128571 is 1758215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1758215 = 5 ⋅351643.

It is a cyclic number.

It is not a de Polignac number, because 5128571 - 2⁶ = 5128507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5128573) 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, 366320 + ... + 366333.

It is an arithmetic number, because the mean of its divisors is an integer number (1465308).

Almost surely, 2^5128571 is an apocalyptic number.

5128571 is a deficient number, since it is larger than the sum of its proper divisors (732661).

5128571 is an equidigital number, since it uses as much as digits as its factorization.

5128571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732660.

The product of its digits is 2800, while the sum is 29.

The square root of 5128571 is about 2264.6348491534. The cubic root of 5128571 is about 172.4508968969.

The spelling of 5128571 in words is "five million, one hundred twenty-eight thousand, five hundred seventy-one".