102865 has 8 divisors (see below), whose sum is σ = 141120. Its totient is φ = 70512.

The previous prime is 102859. The next prime is 102871. The reversal of 102865 is 568201.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (102859) and next prime (102871).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102865 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1435 + ... + 1504.

It is an arithmetic number, because the mean of its divisors is an integer number (17640).

2¹⁰²⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

102865 is a deficient number, since it is larger than the sum of its proper divisors (38255).

102865 is an equidigital number, since it uses as much as digits as its factorization.

102865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2951.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 102865 is about 320.7257395346. The cubic root of 102865 is about 46.8549929433.

The spelling of 102865 in words is "one hundred two thousand, eight hundred sixty-five".