4445020169 has 2 divisors, whose sum is σ = 4445020170. Its totient is φ = 4445020168.

The previous prime is 4445020133. The next prime is 4445020171. The reversal of 4445020169 is 9610205444.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4437291769 + 7728400 = 66613^2 + 2780^2 .

It is a cyclic number.

It is not a de Polignac number, because 4445020169 - 2¹² = 4445016073 is a prime.

It is a super-2 number, since 2×4445020169² = 39516408605633577122, which contains 22 as substring.

Together with 4445020171, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4445020199) 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, 2222510084 + 2222510085.

It is an arithmetic number, because the mean of its divisors is an integer number (2222510085).

Almost surely, 2^4445020169 is an apocalyptic number.

It is an amenable number.

4445020169 is a deficient number, since it is larger than the sum of its proper divisors (1).

4445020169 is an equidigital number, since it uses as much as digits as its factorization.

4445020169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 4445020169 is about 66670.9844610082. The cubic root of 4445020169 is about 1644.2123727643.

The spelling of 4445020169 in words is "four billion, four hundred forty-five million, twenty thousand, one hundred sixty-nine".