1954543 has 2 divisors, whose sum is σ = 1954544. Its totient is φ = 1954542.

The previous prime is 1954531. The next prime is 1954553. The reversal of 1954543 is 3454591.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1954543 is a prime.

It is a d-powerful number, because it can be written as 1 + 9 + 5³ + 4² + 5⁹ + 4⁵ + 3⁵ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1954523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 977271 + 977272.

It is an arithmetic number, because the mean of its divisors is an integer number (977272).

2^1954543 is an apocalyptic number.

1954543 is a deficient number, since it is larger than the sum of its proper divisors (1).

1954543 is an equidigital number, since it uses as much as digits as its factorization.

1954543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 31.

The square root of 1954543 is about 1398.0497129931. The cubic root of 1954543 is about 125.0302433488.

The spelling of 1954543 in words is "one million, nine hundred fifty-four thousand, five hundred forty-three".