105022155 has 16 divisors (see below), whose sum is σ = 192040704. Its totient is φ = 48010080.

The previous prime is 105022133. The next prime is 105022157. The reversal of 105022155 is 551220501.

It is not a de Polignac number, because 105022155 - 2⁶ = 105022091 is a prime.

It is a super-2 number, since 2×105022155² = 22059306081688050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (105022157) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 500001 + ... + 500210.

It is an arithmetic number, because the mean of its divisors is an integer number (12002544).

Almost surely, 2^105022155 is an apocalyptic number.

105022155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105022155 is a deficient number, since it is larger than the sum of its proper divisors (87018549).

105022155 is a wasteful number, since it uses less digits than its factorization.

105022155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000226.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 105022155 is about 10248.0317622459. The cubic root of 105022155 is about 471.8025768125.

Adding to 105022155 its reverse (551220501), we get a palindrome (656242656).

The spelling of 105022155 in words is "one hundred five million, twenty-two thousand, one hundred fifty-five".