102005342 has 4 divisors (see below), whose sum is σ = 153008016. Its totient is φ = 51002670.

The previous prime is 102005327. The next prime is 102005363. The reversal of 102005342 is 243500201.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 102005342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25501334 + ... + 25501337.

It is an arithmetic number, because the mean of its divisors is an integer number (38252004).

Almost surely, 2^102005342 is an apocalyptic number.

102005342 is a deficient number, since it is larger than the sum of its proper divisors (51002674).

102005342 is an equidigital number, since it uses as much as digits as its factorization.

102005342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51002673.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 102005342 is about 10099.7694033082. The cubic root of 102005342 is about 467.2410294186.

Adding to 102005342 its reverse (243500201), we get a palindrome (345505543).

The spelling of 102005342 in words is "one hundred two million, five thousand, three hundred forty-two".