2520143 has 4 divisors (see below), whose sum is σ = 2535768. Its totient is φ = 2504520.

The previous prime is 2520139. The next prime is 2520149. The reversal of 2520143 is 3410252.

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 2520143 - 2² = 2520139 is a prime.

It is a super-2 number, since 2×2520143² = 12702241480898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2520149) 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, 7568 + ... + 7893.

It is an arithmetic number, because the mean of its divisors is an integer number (633942).

2^2520143 is an apocalyptic number.

2520143 is a deficient number, since it is larger than the sum of its proper divisors (15625).

2520143 is a wasteful number, since it uses less digits than its factorization.

2520143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15624.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2520143 is about 1587.4958267662. The cubic root of 2520143 is about 136.0844163052.

Adding to 2520143 its reverse (3410252), we get a palindrome (5930395).

The spelling of 2520143 in words is "two million, five hundred twenty thousand, one hundred forty-three".