105423661 has 8 divisors (see below), whose sum is σ = 121158720. Its totient is φ = 89857248.

The previous prime is 105423649. The next prime is 105423701. The reversal of 105423661 is 166324501.

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 105423661 - 2¹⁷ = 105292589 is a prime.

It is a super-2 number, since 2×105423661² = 22228296597285842, 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 (105423611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40816 + ... + 43321.

It is an arithmetic number, because the mean of its divisors is an integer number (15144840).

Almost surely, 2^105423661 is an apocalyptic number.

It is an amenable number.

105423661 is a deficient number, since it is larger than the sum of its proper divisors (15735059).

105423661 is an equidigital number, since it uses as much as digits as its factorization.

105423661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84323.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 105423661 is about 10267.6024952274. The cubic root of 105423661 is about 472.4030554261.

The spelling of 105423661 in words is "one hundred five million, four hundred twenty-three thousand, six hundred sixty-one".