105420166 has 4 divisors (see below), whose sum is σ = 158130252. Its totient is φ = 52710082.

The previous prime is 105420157. The next prime is 105420169. The reversal of 105420166 is 661024501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 661024501 = 31 ⋅21323371.

It is a super-2 number, since 2×105420166² = 22226822798935112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 105420166.

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 as a sum of consecutive naturals, namely, 26355040 + ... + 26355043.

It is an arithmetic number, because the mean of its divisors is an integer number (39532563).

Almost surely, 2^105420166 is an apocalyptic number.

105420166 is a deficient number, since it is larger than the sum of its proper divisors (52710086).

105420166 is an equidigital number, since it uses as much as digits as its factorization.

105420166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52710085.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 105420166 is about 10267.4322982915. The cubic root of 105420166 is about 472.3978350075.

Adding to 105420166 its reverse (661024501), we get a palindrome (766444667).

The spelling of 105420166 in words is "one hundred five million, four hundred twenty thousand, one hundred sixty-six".