2528143 has 4 divisors (see below), whose sum is σ = 2609728. Its totient is φ = 2446560.

The previous prime is 2528129. The next prime is 2528147. The reversal of 2528143 is 3418252.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2528143 - 2¹⁷ = 2397071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2528147) 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, 40746 + ... + 40807.

It is an arithmetic number, because the mean of its divisors is an integer number (652432).

2^2528143 is an apocalyptic number.

2528143 is a deficient number, since it is larger than the sum of its proper divisors (81585).

2528143 is an equidigital number, since it uses as much as digits as its factorization.

2528143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81584.

The product of its digits is 1920, while the sum is 25.

The square root of 2528143 is about 1590.0135219551. The cubic root of 2528143 is about 136.2282607069.

The spelling of 2528143 in words is "two million, five hundred twenty-eight thousand, one hundred forty-three".