164862949 has 2 divisors, whose sum is σ = 164862950. Its totient is φ = 164862948.

The previous prime is 164862937. The next prime is 164862961. The reversal of 164862949 is 949268461.

It is a balanced prime because it is at equal distance from previous prime (164862937) and next prime (164862961).

It can be written as a sum of positive squares in only one way, i.e., 102373924 + 62489025 = 10118^2 + 7905^2 .

It is an emirp because it is prime and its reverse (949268461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164862949 - 2⁹ = 164862437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164862979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82431474 + 82431475.

It is an arithmetic number, because the mean of its divisors is an integer number (82431475).

Almost surely, 2^164862949 is an apocalyptic number.

It is an amenable number.

164862949 is a deficient number, since it is larger than the sum of its proper divisors (1).

164862949 is an equidigital number, since it uses as much as digits as its factorization.

164862949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 746496, while the sum is 49.

The square root of 164862949 is about 12839.8967674978. The cubic root of 164862949 is about 548.3287549519.

The spelling of 164862949 in words is "one hundred sixty-four million, eight hundred sixty-two thousand, nine hundred forty-nine".