2135143 has 4 divisors (see below), whose sum is σ = 2138080. Its totient is φ = 2132208.

The previous prime is 2135141. The next prime is 2135153. The reversal of 2135143 is 3415312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2135143 - 2¹ = 2135141 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2135143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135141) 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, 523 + ... + 2131.

It is an arithmetic number, because the mean of its divisors is an integer number (534520).

2^2135143 is an apocalyptic number.

2135143 is a deficient number, since it is larger than the sum of its proper divisors (2937).

2135143 is a wasteful number, since it uses less digits than its factorization.

2135143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2936.

The product of its digits is 360, while the sum is 19.

The square root of 2135143 is about 1461.2128523935. The cubic root of 2135143 is about 128.7683079505.

It can be divided in two parts, 2135 and 143, that added together give a triangular number (2278 = T₆₇).

The spelling of 2135143 in words is "two million, one hundred thirty-five thousand, one hundred forty-three".