105102081 has 24 divisors (see below), whose sum is σ = 175953024. Its totient is φ = 59209920.

The previous prime is 105102073. The next prime is 105102083. The reversal of 105102081 is 180201501.

It is not a de Polignac number, because 105102081 - 2³ = 105102073 is a prime.

It is a super-2 number, since 2×105102081² = 22092894861061122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105102083) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7276 + ... + 16221.

It is an arithmetic number, because the mean of its divisors is an integer number (7331376).

Almost surely, 2^105102081 is an apocalyptic number.

It is an amenable number.

105102081 is a deficient number, since it is larger than the sum of its proper divisors (70850943).

105102081 is a wasteful number, since it uses less digits than its factorization.

105102081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23581 (or 23578 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The square root of 105102081 is about 10251.9305986726. The cubic root of 105102081 is about 471.9222332498.

Adding to 105102081 its reverse (180201501), we get a palindrome (285303582).

The spelling of 105102081 in words is "one hundred five million, one hundred two thousand, eighty-one".