2054543 has 2 divisors, whose sum is σ = 2054544. Its totient is φ = 2054542.

The previous prime is 2054537. The next prime is 2054579. The reversal of 2054543 is 3454502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2054543 - 2¹⁴ = 2038159 is a prime.

It is a super-2 number, since 2×2054543² = 8442293877698, which contains 22 as substring.

It is equal to p₁₅₂₆₉₀ and since 2054543 and 152690 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2054593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027271 + 1027272.

It is an arithmetic number, because the mean of its divisors is an integer number (1027272).

2^2054543 is an apocalyptic number.

2054543 is a deficient number, since it is larger than the sum of its proper divisors (1).

2054543 is an equidigital number, since it uses as much as digits as its factorization.

2054543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 2054543 is about 1433.3677127660. The cubic root of 2054543 is about 127.1271795195.

The spelling of 2054543 in words is "two million, fifty-four thousand, five hundred forty-three".