102042165 has 16 divisors (see below), whose sum is σ = 163541376. Its totient is φ = 54331200.

The previous prime is 102042151. The next prime is 102042181. The reversal of 102042165 is 561240201.

It is not a de Polignac number, because 102042165 - 2⁷ = 102042037 is a prime.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 14855.

It is an arithmetic number, because the mean of its divisors is an integer number (10221336).

Almost surely, 2^102042165 is an apocalyptic number.

102042165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

102042165 is a deficient number, since it is larger than the sum of its proper divisors (61499211).

102042165 is a wasteful number, since it uses less digits than its factorization.

102042165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11420.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 102042165 is about 10101.5922012324. The cubic root of 102042165 is about 467.2972459076.

Adding to 102042165 its reverse (561240201), we get a palindrome (663282366).

The spelling of 102042165 in words is "one hundred two million, forty-two thousand, one hundred sixty-five".