419960161 has 2 divisors, whose sum is σ = 419960162. Its totient is φ = 419960160.

The previous prime is 419960159. The next prime is 419960183. The reversal of 419960161 is 161069914.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 410467600 + 9492561 = 20260^2 + 3081^2 .

It is a cyclic number.

It is not a de Polignac number, because 419960161 - 2¹ = 419960159 is a prime.

Together with 419960159, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 419960161.

It is not a weakly prime, because it can be changed into another prime (419960461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209980080 + 209980081.

It is an arithmetic number, because the mean of its divisors is an integer number (209980081).

Almost surely, 2^419960161 is an apocalyptic number.

It is an amenable number.

419960161 is a deficient number, since it is larger than the sum of its proper divisors (1).

419960161 is an equidigital number, since it uses as much as digits as its factorization.

419960161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 419960161 is about 20492.9295367939. The cubic root of 419960161 is about 748.8635594662.

The spelling of 419960161 in words is "four hundred nineteen million, nine hundred sixty thousand, one hundred sixty-one".