102005534 has 8 divisors (see below), whose sum is σ = 153099288. Its totient is φ = 50972440.

The previous prime is 102005521. The next prime is 102005537. The reversal of 102005534 is 435500201.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102005537) 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, 10697 + ... + 17844.

It is an arithmetic number, because the mean of its divisors is an integer number (19137411).

Almost surely, 2^102005534 is an apocalyptic number.

102005534 is a deficient number, since it is larger than the sum of its proper divisors (51093754).

102005534 is a wasteful number, since it uses less digits than its factorization.

102005534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30330.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 102005534 is about 10099.7789084712. The cubic root of 102005534 is about 467.2413225740.

Adding to 102005534 its reverse (435500201), we get a palindrome (537505735).

The spelling of 102005534 in words is "one hundred two million, five thousand, five hundred thirty-four".