105220455 has 16 divisors (see below), whose sum is σ = 169029504. Its totient is φ = 55892000.

The previous prime is 105220447. The next prime is 105220471. The reversal of 105220455 is 554022501.

It is a happy number.

It is not a de Polignac number, because 105220455 - 2³ = 105220447 is a prime.

It is a super-2 number, since 2×105220455² = 22142688300814050, 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 (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10209 + ... + 17738.

It is an arithmetic number, because the mean of its divisors is an integer number (10564344).

Almost surely, 2^105220455 is an apocalyptic number.

105220455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105220455 is a deficient number, since it is larger than the sum of its proper divisors (63809049).

105220455 is a wasteful number, since it uses less digits than its factorization.

105220455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28206.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 105220455 is about 10257.7022280821. The cubic root of 105220455 is about 472.0993384111.

Adding to 105220455 its reverse (554022501), we get a palindrome (659242956).

The spelling of 105220455 in words is "one hundred five million, two hundred twenty thousand, four hundred fifty-five".