2135543 has 4 divisors (see below), whose sum is σ = 2247960. Its totient is φ = 2023128.

The previous prime is 2135537. The next prime is 2135563. The reversal of 2135543 is 3455312.

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 2135543 - 2⁶ = 2135479 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 3⁴ + 5⁵ + 5⁹ + 4² + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2135503) 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, 56180 + ... + 56217.

It is an arithmetic number, because the mean of its divisors is an integer number (561990).

2^2135543 is an apocalyptic number.

2135543 is a deficient number, since it is larger than the sum of its proper divisors (112417).

2135543 is a wasteful number, since it uses less digits than its factorization.

2135543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112416.

The product of its digits is 1800, while the sum is 23.

The square root of 2135543 is about 1461.3497185821. The cubic root of 2135543 is about 128.7763486464.

The spelling of 2135543 in words is "two million, one hundred thirty-five thousand, five hundred forty-three".