105921755 has 8 divisors (see below), whose sum is σ = 127162224. Its totient is φ = 84700000.

The previous prime is 105921733. The next prime is 105921773. The reversal of 105921755 is 557129501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105921755 - 2¹² = 105917659 is a prime.

It is a super-2 number, since 2×105921755² = 22438836364560050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16505 + ... + 22005.

It is an arithmetic number, because the mean of its divisors is an integer number (15895278).

Almost surely, 2^105921755 is an apocalyptic number.

105921755 is a deficient number, since it is larger than the sum of its proper divisors (21240469).

105921755 is an equidigital number, since it uses as much as digits as its factorization.

105921755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9357.

The product of its (nonzero) digits is 15750, while the sum is 35.

The square root of 105921755 is about 10291.8295263767. The cubic root of 105921755 is about 473.1458726141.

The spelling of 105921755 in words is "one hundred five million, nine hundred twenty-one thousand, seven hundred fifty-five".