164766949 has 2 divisors, whose sum is σ = 164766950. Its totient is φ = 164766948.

The previous prime is 164766929. The next prime is 164766971. The reversal of 164766949 is 949667461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145974724 + 18792225 = 12082^2 + 4335^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164766949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164766896 and 164766905.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164766929) 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, 82383474 + 82383475.

It is an arithmetic number, because the mean of its divisors is an integer number (82383475).

Almost surely, 2^164766949 is an apocalyptic number.

It is an amenable number.

164766949 is a deficient number, since it is larger than the sum of its proper divisors (1).

164766949 is an equidigital number, since it uses as much as digits as its factorization.

164766949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1959552, while the sum is 52.

The square root of 164766949 is about 12836.1578753146. The cubic root of 164766949 is about 548.2223033377. Note that the first 3 decimals are identical.

The spelling of 164766949 in words is "one hundred sixty-four million, seven hundred sixty-six thousand, nine hundred forty-nine".