4149543 has 16 divisors (see below), whose sum is σ = 5962880. Its totient is φ = 2558304.

The previous prime is 4149533. The next prime is 4149553. The reversal of 4149543 is 3459414.

It is an interprime number because it is at equal distance from previous prime (4149533) and next prime (4149553).

It is not a de Polignac number, because 4149543 - 2⁸ = 4149287 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 4149543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4149533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1605 + ... + 3297.

It is an arithmetic number, because the mean of its divisors is an integer number (372680).

Almost surely, 2^4149543 is an apocalyptic number.

4149543 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4149543 is a deficient number, since it is larger than the sum of its proper divisors (1813337).

4149543 is a wasteful number, since it uses less digits than its factorization.

4149543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758.

The product of its digits is 8640, while the sum is 30.

The square root of 4149543 is about 2037.0427094197. The cubic root of 4149543 is about 160.6941585236.

The spelling of 4149543 in words is "four million, one hundred forty-nine thousand, five hundred forty-three".