105404505 has 32 divisors (see below), whose sum is σ = 179324928. Its totient is φ = 52684800.

The previous prime is 105404491. The next prime is 105404543. The reversal of 105404505 is 505404501.

It is not a de Polignac number, because 105404505 - 2⁹ = 105403993 is a prime.

It is a super-2 number, since 2×105404505² = 22220219348590050, which contains 22 as substring.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 70920 + ... + 72390.

It is an arithmetic number, because the mean of its divisors is an integer number (5603904).

Almost surely, 2^105404505 is an apocalyptic number.

105404505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105404505 is a deficient number, since it is larger than the sum of its proper divisors (73920423).

105404505 is a wasteful number, since it uses less digits than its factorization.

105404505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1777.

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

The square root of 105404505 is about 10266.6696158004. The cubic root of 105404505 is about 472.3744410366.

The spelling of 105404505 in words is "one hundred five million, four hundred four thousand, five hundred five".