105623355 has 16 divisors (see below), whose sum is σ = 174449664. Its totient is φ = 54515040.

The previous prime is 105623333. The next prime is 105623359. The reversal of 105623355 is 553326501.

It is not a de Polignac number, because 105623355 - 2¹² = 105619259 is a prime.

It is a super-2 number, since 2×105623355² = 22312586242912050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105623359) 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 15 ways as a sum of consecutive naturals, for example, 113109 + ... + 114038.

It is an arithmetic number, because the mean of its divisors is an integer number (10903104).

Almost surely, 2^105623355 is an apocalyptic number.

105623355 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105623355 is a deficient number, since it is larger than the sum of its proper divisors (68826309).

105623355 is a wasteful number, since it uses less digits than its factorization.

105623355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227186.

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 105623355 is about 10277.3223652856. The cubic root of 105623355 is about 472.7011433301.

Adding to 105623355 its reverse (553326501), we get a palindrome (658949856).

The spelling of 105623355 in words is "one hundred five million, six hundred twenty-three thousand, three hundred fifty-five".