103521543 has 8 divisors (see below), whose sum is σ = 138135168. Its totient is φ = 68961144.

The previous prime is 103521541. The next prime is 103521547. The reversal of 103521543 is 345125301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 103521543 - 2¹ = 103521541 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103521541) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8521 + ... + 16722.

It is an arithmetic number, because the mean of its divisors is an integer number (17266896).

Almost surely, 2^103521543 is an apocalyptic number.

103521543 is a deficient number, since it is larger than the sum of its proper divisors (34613625).

103521543 is a wasteful number, since it uses less digits than its factorization.

103521543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26613.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 103521543 is about 10174.5537002858. The cubic root of 103521543 is about 469.5446669105.

Adding to 103521543 its reverse (345125301), we get a palindrome (448646844).

It can be divided in two parts, 1035 and 21543, that added together give a triangular number (22578 = T₂₁₂).

The spelling of 103521543 in words is "one hundred three million, five hundred twenty-one thousand, five hundred forty-three".