102065555 has 8 divisors (see below), whose sum is σ = 123563232. Its totient is φ = 80929408.

The previous prime is 102065519. The next prime is 102065591. The reversal of 102065555 is 555560201.

It is an interprime number because it is at equal distance from previous prime (102065519) and next prime (102065591).

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

It is a cyclic number.

It is not a de Polignac number, because 102065555 - 2¹⁰ = 102064531 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 89759 + ... + 90888.

It is an arithmetic number, because the mean of its divisors is an integer number (15445404).

Almost surely, 2^102065555 is an apocalyptic number.

102065555 is a deficient number, since it is larger than the sum of its proper divisors (21497677).

102065555 is a wasteful number, since it uses less digits than its factorization.

102065555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180765.

The product of its (nonzero) digits is 7500, while the sum is 29.

The square root of 102065555 is about 10102.7498731781. The cubic root of 102065555 is about 467.3329476444.

The spelling of 102065555 in words is "one hundred two million, sixty-five thousand, five hundred fifty-five".