40103543 has 4 divisors (see below), whose sum is σ = 40117968. Its totient is φ = 40089120.

The previous prime is 40103537. The next prime is 40103551. The reversal of 40103543 is 34530104.

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 40103543 - 2¹⁰ = 40102519 is a prime.

It is a super-2 number, since 2×40103543² = 3216588322305698, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40103573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1571 + ... + 9092.

It is an arithmetic number, because the mean of its divisors is an integer number (10029492).

Almost surely, 2^40103543 is an apocalyptic number.

40103543 is a deficient number, since it is larger than the sum of its proper divisors (14425).

40103543 is a wasteful number, since it uses less digits than its factorization.

40103543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14424.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 40103543 is about 6332.7358226915. The cubic root of 40103543 is about 342.2900284762.

Adding to 40103543 its reverse (34530104), we get a palindrome (74633647).

The spelling of 40103543 in words is "forty million, one hundred three thousand, five hundred forty-three".