2061543 has 16 divisors (see below), whose sum is σ = 3024000. Its totient is φ = 1238880.

The previous prime is 2061533. The next prime is 2061551. The reversal of 2061543 is 3451602.

It is a happy number.

It is not a de Polignac number, because 2061543 - 2⁸ = 2061287 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 0 + 6³ + 1 + 5⁹ + 4⁷ + 3¹⁰ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061503) 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, 5733 + ... + 6081.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

2^2061543 is an apocalyptic number.

2061543 is a deficient number, since it is larger than the sum of its proper divisors (962457).

2061543 is a wasteful number, since it uses less digits than its factorization.

2061543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2061543 is about 1435.8074383426. The cubic root of 2061543 is about 127.2713935080.

The spelling of 2061543 in words is "two million, sixty-one thousand, five hundred forty-three".