105878065 has 8 divisors (see below), whose sum is σ = 127207080. Its totient is φ = 84600192.

The previous prime is 105878041. The next prime is 105878077. The reversal of 105878065 is 560878501.

It can be written as a sum of positive squares in 4 ways, for example, as 40462321 + 65415744 = 6361^2 + 8088^2 .

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 105878065 - 2⁵ = 105878033 is a prime.

It is a super-2 number, since 2×105878065² = 22420329296288450, which contains 22 as substring.

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, 8070 + ... + 16639.

It is an arithmetic number, because the mean of its divisors is an integer number (15900885).

Almost surely, 2^105878065 is an apocalyptic number.

It is an amenable number.

105878065 is a deficient number, since it is larger than the sum of its proper divisors (21329015).

105878065 is an equidigital number, since it uses as much as digits as its factorization.

105878065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25571.

The product of its (nonzero) digits is 67200, while the sum is 40.

The square root of 105878065 is about 10289.7067499516. The cubic root of 105878065 is about 473.0808101662.

The spelling of 105878065 in words is "one hundred five million, eight hundred seventy-eight thousand, sixty-five".