164315677 has 2 divisors, whose sum is σ = 164315678. Its totient is φ = 164315676.

The previous prime is 164315663. The next prime is 164315699. The reversal of 164315677 is 776513461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 131928196 + 32387481 = 11486^2 + 5691^2 .

It is a cyclic number.

It is not a de Polignac number, because 164315677 - 2⁷ = 164315549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164310677) 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, 82157838 + 82157839.

It is an arithmetic number, because the mean of its divisors is an integer number (82157839).

Almost surely, 2^164315677 is an apocalyptic number.

It is an amenable number.

164315677 is a deficient number, since it is larger than the sum of its proper divisors (1).

164315677 is an equidigital number, since it uses as much as digits as its factorization.

164315677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 105840, while the sum is 40.

The square root of 164315677 is about 12818.5676656949. The cubic root of 164315677 is about 547.7213461119.

The spelling of 164315677 in words is "one hundred sixty-four million, three hundred fifteen thousand, six hundred seventy-seven".