105278085 has 24 divisors (see below), whose sum is σ = 199072224. Its totient is φ = 51043680.

The previous prime is 105278053. The next prime is 105278099. The reversal of 105278085 is 580872501.

It is not a de Polignac number, because 105278085 - 2⁵ = 105278053 is a prime.

It is a super-2 number, since 2×105278085² = 22166950362534450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 105847 + ... + 106836.

It is an arithmetic number, because the mean of its divisors is an integer number (8294676).

Almost surely, 2^105278085 is an apocalyptic number.

105278085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105278085 is a deficient number, since it is larger than the sum of its proper divisors (93794139).

105278085 is a wasteful number, since it uses less digits than its factorization.

105278085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212705 (or 212702 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 105278085 is about 10260.5109521895. The cubic root of 105278085 is about 472.1855134146.

The spelling of 105278085 in words is "one hundred five million, two hundred seventy-eight thousand, eighty-five".