2420143 has 4 divisors (see below), whose sum is σ = 2640168. Its totient is φ = 2200120.

The previous prime is 2420123. The next prime is 2420167. The reversal of 2420143 is 3410242.

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 2420143 - 2⁵ = 2420111 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 (2420113) 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, 109996 + ... + 110017.

It is an arithmetic number, because the mean of its divisors is an integer number (660042).

2^2420143 is an apocalyptic number.

2420143 is a deficient number, since it is larger than the sum of its proper divisors (220025).

2420143 is a wasteful number, since it uses less digits than its factorization.

2420143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220024.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2420143 is about 1555.6808798722. The cubic root of 2420143 is about 134.2601133049.

Adding to 2420143 its reverse (3410242), we get a palindrome (5830385).

Subtracting 2420143 from its reverse (3410242), we obtain a palindrome (990099).

The spelling of 2420143 in words is "two million, four hundred twenty thousand, one hundred forty-three".