102775 has 6 divisors (see below), whose sum is σ = 127472. Its totient is φ = 82200.

The previous prime is 102769. The next prime is 102793. The reversal of 102775 is 577201.

It is not a de Polignac number, because 102775 - 2⁷ = 102647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2031 + ... + 2080.

2¹⁰²⁷⁷⁵ is an apocalyptic number.

102775 is a deficient number, since it is larger than the sum of its proper divisors (24697).

102775 is an equidigital number, since it uses as much as digits as its factorization.

102775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4121 (or 4116 counting only the distinct ones).

The product of its (nonzero) digits is 490, while the sum is 22.

The square root of 102775 is about 320.5854020382. The cubic root of 102775 is about 46.8413239603.

Adding to 102775 its reverse (577201), we get a palindrome (679976).

The spelling of 102775 in words is "one hundred two thousand, seven hundred seventy-five".