105810961 has 4 divisors (see below), whose sum is σ = 106460272. Its totient is φ = 105161652.

The previous prime is 105810893. The next prime is 105810979. The reversal of 105810961 is 169018501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 105810961 - 2²¹ = 103713809 is a prime.

It is a super-2 number, since 2×105810961² = 22391918935487042, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105810461) 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 3 ways as a sum of consecutive naturals, for example, 324411 + ... + 324736.

It is an arithmetic number, because the mean of its divisors is an integer number (26615068).

Almost surely, 2^105810961 is an apocalyptic number.

It is an amenable number.

105810961 is a deficient number, since it is larger than the sum of its proper divisors (649311).

105810961 is an equidigital number, since it uses as much as digits as its factorization.

105810961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649310.

The product of its (nonzero) digits is 2160, while the sum is 31.

The square root of 105810961 is about 10286.4454988106. The cubic root of 105810961 is about 472.9808450988.

The spelling of 105810961 in words is "one hundred five million, eight hundred ten thousand, nine hundred sixty-one".