102543506 has 16 divisors (see below), whose sum is σ = 166488000. Its totient is φ = 47087568.

The previous prime is 102543503. The next prime is 102543509. The reversal of 102543506 is 605345201.

It is an interprime number because it is at equal distance from previous prime (102543503) and next prime (102543509).

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (102543503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4736 + ... + 15083.

It is an arithmetic number, because the mean of its divisors is an integer number (10405500).

Almost surely, 2^102543506 is an apocalyptic number.

102543506 is a deficient number, since it is larger than the sum of its proper divisors (63944494).

102543506 is a wasteful number, since it uses less digits than its factorization.

102543506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20033.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 102543506 is about 10126.3767459047. The cubic root of 102543506 is about 468.0612851050.

Adding to 102543506 its reverse (605345201), we get a palindrome (707888707).

The spelling of 102543506 in words is "one hundred two million, five hundred forty-three thousand, five hundred six".