105682661 has 6 divisors (see below), whose sum is σ = 122937030. Its totient is φ = 90585096.

The previous prime is 105682657. The next prime is 105682697. The reversal of 105682661 is 166286501.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 103022500 + 2660161 = 10150^2 + 1631^2 .

It is not a de Polignac number, because 105682661 - 2² = 105682657 is a prime.

It is a super-2 number, since 2×105682661² = 22337649672081842, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105681661) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1078346 + ... + 1078443.

It is an arithmetic number, because the mean of its divisors is an integer number (20489505).

Almost surely, 2^105682661 is an apocalyptic number.

It is an amenable number.

105682661 is a deficient number, since it is larger than the sum of its proper divisors (17254369).

105682661 is an equidigital number, since it uses as much as digits as its factorization.

105682661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2156803 (or 2156796 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 105682661 is about 10280.2072449927. The cubic root of 105682661 is about 472.7895984157.

The spelling of 105682661 in words is "one hundred five million, six hundred eighty-two thousand, six hundred sixty-one".