102006534 has 24 divisors (see below), whose sum is σ = 237322008. Its totient is φ = 29144640.

The previous prime is 102006493. The next prime is 102006539. The reversal of 102006534 is 435600201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 102006534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102006539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 173187 + ... + 173774.

It is an arithmetic number, because the mean of its divisors is an integer number (9888417).

Almost surely, 2^102006534 is an apocalyptic number.

102006534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

102006534 is an abundant number, since it is smaller than the sum of its proper divisors (135315474).

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

102006534 is a wasteful number, since it uses less digits than its factorization.

102006534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346980 (or 346973 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 102006534 is about 10099.8284143841. The cubic root of 102006534 is about 467.2428494185.

Adding to 102006534 its reverse (435600201), we get a palindrome (537606735).

The spelling of 102006534 in words is "one hundred two million, six thousand, five hundred thirty-four".