105685113 has 4 divisors (see below), whose sum is σ = 140913488. Its totient is φ = 70456740.

The previous prime is 105685109. The next prime is 105685121. The reversal of 105685113 is 311586501.

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, and also an emirpimes, since its reverse is a distinct semiprime: 311586501 = 3 ⋅103862167.

It is not a de Polignac number, because 105685113 - 2² = 105685109 is a prime.

It is a super-2 number, since 2×105685113² = 22338686219645538, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (105685213) 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, 17614183 + ... + 17614188.

It is an arithmetic number, because the mean of its divisors is an integer number (35228372).

Almost surely, 2^105685113 is an apocalyptic number.

It is an amenable number.

105685113 is a deficient number, since it is larger than the sum of its proper divisors (35228375).

105685113 is an equidigital number, since it uses as much as digits as its factorization.

105685113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35228374.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 105685113 is about 10280.3265025971. The cubic root of 105685113 is about 472.7932548690.

The spelling of 105685113 in words is "one hundred five million, six hundred eighty-five thousand, one hundred thirteen".