105563642 has 8 divisors (see below), whose sum is σ = 167659956. Its totient is φ = 49676992.

The previous prime is 105563597. The next prime is 105563737. The reversal of 105563642 is 246365501.

It can be written as a sum of positive squares in 2 ways, for example, as 78304801 + 27258841 = 8849^2 + 5221^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×105563642² = 22287365024608328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105563599 and 105563608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1552373 + ... + 1552440.

Almost surely, 2^105563642 is an apocalyptic number.

105563642 is a deficient number, since it is larger than the sum of its proper divisors (62096314).

105563642 is a wasteful number, since it uses less digits than its factorization.

105563642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3104832.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 105563642 is about 10274.4168690977. The cubic root of 105563642 is about 472.6120477438.

The spelling of 105563642 in words is "one hundred five million, five hundred sixty-three thousand, six hundred forty-two".