105521214 has 16 divisors (see below), whose sum is σ = 211339152. Its totient is φ = 35124288.

The previous prime is 105521209. The next prime is 105521233. The reversal of 105521214 is 412125501.

It is a super-2 number, since 2×105521214² = 22269453208067592, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 7599 + ... + 16394.

It is an arithmetic number, because the mean of its divisors is an integer number (13208697).

Almost surely, 2^105521214 is an apocalyptic number.

105521214 is an abundant number, since it is smaller than the sum of its proper divisors (105817938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105521214 is a wasteful number, since it uses less digits than its factorization.

105521214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24731.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 105521214 is about 10272.3519215416. The cubic root of 105521214 is about 472.5487220551.

Adding to 105521214 its reverse (412125501), we get a palindrome (517646715).

The spelling of 105521214 in words is "one hundred five million, five hundred twenty-one thousand, two hundred fourteen".