163334261 has 2 divisors, whose sum is σ = 163334262. Its totient is φ = 163334260.

The previous prime is 163334251. The next prime is 163334263. The reversal of 163334261 is 162433361.

163334261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89889361 + 73444900 = 9481^2 + 8570^2 .

It is a cyclic number.

It is not a de Polignac number, because 163334261 - 2¹⁴ = 163317877 is a prime.

It is a super-3 number, since 3×163334261³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

Together with 163334263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (163334263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81667130 + 81667131.

It is an arithmetic number, because the mean of its divisors is an integer number (81667131).

Almost surely, 2^163334261 is an apocalyptic number.

It is an amenable number.

163334261 is a deficient number, since it is larger than the sum of its proper divisors (1).

163334261 is an equidigital number, since it uses as much as digits as its factorization.

163334261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 29.

The square root of 163334261 is about 12780.2293015423. The cubic root of 163334261 is about 546.6287008054.

The spelling of 163334261 in words is "one hundred sixty-three million, three hundred thirty-four thousand, two hundred sixty-one".