105816155 has 12 divisors (see below), whose sum is σ = 128644992. Its totient is φ = 83556720.

The previous prime is 105816133. The next prime is 105816181. The reversal of 105816155 is 551618501.

It is not a de Polignac number, because 105816155 - 2¹² = 105812059 is a prime.

It is a super-2 number, since 2×105816155² = 22394117317968050, which contains 22 as substring.

It is a Duffinian 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 11 ways as a sum of consecutive naturals, for example, 29510 + ... + 32900.

It is an arithmetic number, because the mean of its divisors is an integer number (10720416).

Almost surely, 2^105816155 is an apocalyptic number.

105816155 is a deficient number, since it is larger than the sum of its proper divisors (22828837).

105816155 is an frugal number, since it uses more digits than its factorization.

105816155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3554 (or 3475 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 32.

The square root of 105816155 is about 10286.6979638755. The cubic root of 105816155 is about 472.9885841279.

The spelling of 105816155 in words is "one hundred five million, eight hundred sixteen thousand, one hundred fifty-five".