105312665 has 8 divisors (see below), whose sum is σ = 129064320. Its totient is φ = 82457392.

The previous prime is 105312583. The next prime is 105312709. The reversal of 105312665 is 566213501.

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 105312665 - 2²⁰ = 104264089 is a prime.

It is a super-2 number, since 2×105312665² = 22181514818804450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223835 + ... + 224304.

It is an arithmetic number, because the mean of its divisors is an integer number (16133040).

Almost surely, 2^105312665 is an apocalyptic number.

It is an amenable number.

105312665 is a deficient number, since it is larger than the sum of its proper divisors (23751655).

105312665 is an equidigital number, since it uses as much as digits as its factorization.

105312665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448191.

The product of its (nonzero) digits is 5400, while the sum is 29.

The square root of 105312665 is about 10262.1959151051. The cubic root of 105312665 is about 472.2372063117.

The spelling of 105312665 in words is "one hundred five million, three hundred twelve thousand, six hundred sixty-five".