105234865 has 4 divisors (see below), whose sum is σ = 126281844. Its totient is φ = 84187888.

The previous prime is 105234859. The next prime is 105234869. The reversal of 105234865 is 568432501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59861169 + 45373696 = 7737^2 + 6736^2 .

It is a cyclic number.

It is not a de Polignac number, because 105234865 - 2⁷ = 105234737 is a prime.

It is a super-2 number, since 2×105234865² = 22148753623136450, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105234865.

It is not an unprimeable number, because it can be changed into a prime (105234869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10523482 + ... + 10523491.

It is an arithmetic number, because the mean of its divisors is an integer number (31570461).

Almost surely, 2^105234865 is an apocalyptic number.

It is an amenable number.

105234865 is a deficient number, since it is larger than the sum of its proper divisors (21046979).

105234865 is an equidigital number, since it uses as much as digits as its factorization.

105234865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21046978.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 105234865 is about 10258.4046030560. The cubic root of 105234865 is about 472.1208888500.

The spelling of 105234865 in words is "one hundred five million, two hundred thirty-four thousand, eight hundred sixty-five".