105211601 has 4 divisors (see below), whose sum is σ = 114776304. Its totient is φ = 95646900.

The previous prime is 105211597. The next prime is 105211619. The reversal of 105211601 is 106112501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105211601 - 2² = 105211597 is a prime.

It is a super-2 number, since 2×105211601² = 22138961969966402, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 105211601.

It is not an unprimeable number, because it can be changed into a prime (105211501) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4782335 + ... + 4782356.

It is an arithmetic number, because the mean of its divisors is an integer number (28694076).

Almost surely, 2^105211601 is an apocalyptic number.

105211601 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105211601 is a deficient number, since it is larger than the sum of its proper divisors (9564703).

105211601 is an equidigital number, since it uses as much as digits as its factorization.

105211601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9564702.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 105211601 is about 10257.2706408674. The cubic root of 105211601 is about 472.0860961039.

The spelling of 105211601 in words is "one hundred five million, two hundred eleven thousand, six hundred one".