2102542143 has 16 divisors (see below), whose sum is σ = 3023139840. Its totient is φ = 1292112864.

The previous prime is 2102542097. The next prime is 2102542153. The reversal of 2102542143 is 3412452012.

It is not a de Polignac number, because 2102542143 - 2⁸ = 2102541887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102542153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7303 + ... + 65256.

It is an arithmetic number, because the mean of its divisors is an integer number (188946240).

Almost surely, 2^2102542143 is an apocalyptic number.

2102542143 is a deficient number, since it is larger than the sum of its proper divisors (920597697).

2102542143 is a wasteful number, since it uses less digits than its factorization.

2102542143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73318.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 2102542143 is about 45853.4856145092. The cubic root of 2102542143 is about 1281.0956892152.

Adding to 2102542143 its reverse (3412452012), we get a palindrome (5514994155).

The spelling of 2102542143 in words is "two billion, one hundred two million, five hundred forty-two thousand, one hundred forty-three".