105685261 has 4 divisors (see below), whose sum is σ = 115293024. Its totient is φ = 96077500.

The previous prime is 105685259. The next prime is 105685267. The reversal of 105685261 is 162586501.

It is a happy number.

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 105685261 - 2¹ = 105685259 is a prime.

It is a super-2 number, since 2×105685261² = 22338748785276242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105685267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4803865 + ... + 4803886.

It is an arithmetic number, because the mean of its divisors is an integer number (28823256).

Almost surely, 2^105685261 is an apocalyptic number.

105685261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

105685261 is a deficient number, since it is larger than the sum of its proper divisors (9607763).

105685261 is an equidigital number, since it uses as much as digits as its factorization.

105685261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9607762.

The product of its (nonzero) digits is 14400, while the sum is 34.

The square root of 105685261 is about 10280.3337008095. Note that the first 3 decimals coincide. The cubic root of 105685261 is about 472.7934755666.

The spelling of 105685261 in words is "one hundred five million, six hundred eighty-five thousand, two hundred sixty-one".