44166169 has 2 divisors, whose sum is σ = 44166170. Its totient is φ = 44166168.

The previous prime is 44166139. The next prime is 44166179. The reversal of 44166169 is 96166144.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 31775769 + 12390400 = 5637^2 + 3520^2 .

It is a cyclic number.

It is not a de Polignac number, because 44166169 - 2¹⁹ = 43641881 is a prime.

It is a super-2 number, since 2×44166169² = 3901300968273122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (44166139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22083084 + 22083085.

It is an arithmetic number, because the mean of its divisors is an integer number (22083085).

Almost surely, 2^44166169 is an apocalyptic number.

It is an amenable number.

44166169 is a deficient number, since it is larger than the sum of its proper divisors (1).

44166169 is an equidigital number, since it uses as much as digits as its factorization.

44166169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 37.

The square root of 44166169 is about 6645.7632368299. The cubic root of 44166169 is about 353.4786952824.

It can be divided in two parts, 4416 and 6169, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 44166169 in words is "forty-four million, one hundred sixty-six thousand, one hundred sixty-nine".