105225521 has 8 divisors (see below), whose sum is σ = 109122624. Its totient is φ = 101383920.

The previous prime is 105225509. The next prime is 105225539. The reversal of 105225521 is 125522501.

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 105225521 - 2⁶ = 105225457 is a prime.

It is a super-2 number, since 2×105225521² = 22144820539442882, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105225581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9995 + ... + 17616.

It is an arithmetic number, because the mean of its divisors is an integer number (13640328).

Almost surely, 2^105225521 is an apocalyptic number.

It is an amenable number.

105225521 is a deficient number, since it is larger than the sum of its proper divisors (3897103).

105225521 is a wasteful number, since it uses less digits than its factorization.

105225521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27751.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 105225521 is about 10257.9491615040. The cubic root of 105225521 is about 472.1069149382.

The spelling of 105225521 in words is "one hundred five million, two hundred twenty-five thousand, five hundred twenty-one".