164383771 has 2 divisors, whose sum is σ = 164383772. Its totient is φ = 164383770.

The previous prime is 164383733. The next prime is 164383787. The reversal of 164383771 is 177383461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 164383771 - 2⁷ = 164383643 is a prime.

It is not a weakly prime, because it can be changed into another prime (164383721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82191885 + 82191886.

It is an arithmetic number, because the mean of its divisors is an integer number (82191886).

Almost surely, 2^164383771 is an apocalyptic number.

164383771 is a deficient number, since it is larger than the sum of its proper divisors (1).

164383771 is an equidigital number, since it uses as much as digits as its factorization.

164383771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 84672, while the sum is 40.

The square root of 164383771 is about 12821.2234595611. The cubic root of 164383771 is about 547.7969959975.

The spelling of 164383771 in words is "one hundred sixty-four million, three hundred eighty-three thousand, seven hundred seventy-one".