102403543 has 4 divisors (see below), whose sum is σ = 111712968. Its totient is φ = 93094120.

The previous prime is 102403501. The next prime is 102403549. The reversal of 102403543 is 345304201.

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 102403543 - 2²¹ = 100306391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102403549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654696 + ... + 4654717.

It is an arithmetic number, because the mean of its divisors is an integer number (27928242).

Almost surely, 2^102403543 is an apocalyptic number.

102403543 is a deficient number, since it is larger than the sum of its proper divisors (9309425).

102403543 is an equidigital number, since it uses as much as digits as its factorization.

102403543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9309424.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 102403543 is about 10119.4635727394. The cubic root of 102403543 is about 467.8482337783.

Adding to 102403543 its reverse (345304201), we get a palindrome (447707744).

The spelling of 102403543 in words is "one hundred two million, four hundred three thousand, five hundred forty-three".