105420165 has 8 divisors (see below), whose sum is σ = 168672288. Its totient is φ = 56224080.

The previous prime is 105420157. The next prime is 105420169. The reversal of 105420165 is 561024501.

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

It is not a de Polignac number, because 105420165 - 2³ = 105420157 is a prime.

It is a super-2 number, since 2×105420165² = 22226822377254450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105420169) 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 7 ways as a sum of consecutive naturals, for example, 3513991 + ... + 3514020.

It is an arithmetic number, because the mean of its divisors is an integer number (21084036).

Almost surely, 2^105420165 is an apocalyptic number.

105420165 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105420165 is a deficient number, since it is larger than the sum of its proper divisors (63252123).

105420165 is an equidigital number, since it uses as much as digits as its factorization.

105420165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028019.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 105420165 is about 10267.4322495939. The cubic root of 105420165 is about 472.3978335138.

Adding to 105420165 its reverse (561024501), we get a palindrome (666444666).

The spelling of 105420165 in words is "one hundred five million, four hundred twenty thousand, one hundred sixty-five".