105166445 has 4 divisors (see below), whose sum is σ = 126199740. Its totient is φ = 84133152.

The previous prime is 105166429. The next prime is 105166447. The reversal of 105166445 is 544661501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544661501 = 10883 ⋅50047.

It can be written as a sum of positive squares in 2 ways, for example, as 35844169 + 69322276 = 5987^2 + 8326^2 .

It is a cyclic number.

It is not a de Polignac number, because 105166445 - 2⁴ = 105166429 is a prime.

It is a super-2 number, since 2×105166445² = 22119962307876050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105166447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10516640 + ... + 10516649.

It is an arithmetic number, because the mean of its divisors is an integer number (31549935).

Almost surely, 2^105166445 is an apocalyptic number.

It is an amenable number.

105166445 is a deficient number, since it is larger than the sum of its proper divisors (21033295).

105166445 is an equidigital number, since it uses as much as digits as its factorization.

105166445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21033294.

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 105166445 is about 10255.0692342860. The cubic root of 105166445 is about 472.0185478802.

It can be divided in two parts, 10516 and 6445, that added together give a palindrome (16961).

The spelling of 105166445 in words is "one hundred five million, one hundred sixty-six thousand, four hundred forty-five".