102543084 has 108 divisors (see below), whose sum is σ = 312838344. Its totient is φ = 29284416.

The previous prime is 102543083. The next prime is 102543113. The reversal of 102543084 is 480345201.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (102543083) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 46552 + ... + 48704.

Almost surely, 2^102543084 is an apocalyptic number.

102543084 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102543084, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156419172).

102543084 is an abundant number, since it is smaller than the sum of its proper divisors (210295260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102543084 is a wasteful number, since it uses less digits than its factorization.

102543084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186 (or 2165 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 102543084 is about 10126.3559092104. The cubic root of 102543084 is about 468.0606430292.

Adding to 102543084 its reverse (480345201), we get a palindrome (582888285).

The spelling of 102543084 in words is "one hundred two million, five hundred forty-three thousand, eighty-four".