163420141 has 2 divisors, whose sum is σ = 163420142. Its totient is φ = 163420140.

The previous prime is 163420139. The next prime is 163420163. The reversal of 163420141 is 141024361.

It is an a-pointer prime, because the next prime (163420163) can be obtained adding 163420141 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154480041 + 8940100 = 12429^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 163420141 - 2¹ = 163420139 is a prime.

It is a super-2 number, since 2×163420141² = 53412284968919762, which contains 22 as substring.

Together with 163420139, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163420181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81710070 + 81710071.

It is an arithmetic number, because the mean of its divisors is an integer number (81710071).

Almost surely, 2^163420141 is an apocalyptic number.

It is an amenable number.

163420141 is a deficient number, since it is larger than the sum of its proper divisors (1).

163420141 is an equidigital number, since it uses as much as digits as its factorization.

163420141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 163420141 is about 12783.5887371270. The cubic root of 163420141 is about 546.7244885217.

The spelling of 163420141 in words is "one hundred sixty-three million, four hundred twenty thousand, one hundred forty-one".