105971563 has 4 divisors (see below), whose sum is σ = 106348968. Its totient is φ = 105594160.

The previous prime is 105971561. The next prime is 105971581. The reversal of 105971563 is 365179501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 105971563 - 2¹ = 105971561 is a prime.

It is a super-2 number, since 2×105971563² = 22459944329325938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105971561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188281 + ... + 188842.

It is an arithmetic number, because the mean of its divisors is an integer number (26587242).

Almost surely, 2^105971563 is an apocalyptic number.

105971563 is a deficient number, since it is larger than the sum of its proper divisors (377405).

105971563 is an equidigital number, since it uses as much as digits as its factorization.

105971563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377404.

The product of its (nonzero) digits is 28350, while the sum is 37.

The square root of 105971563 is about 10294.2490255482. The cubic root of 105971563 is about 473.2200240689.

The spelling of 105971563 in words is "one hundred five million, nine hundred seventy-one thousand, five hundred sixty-three".