164484973 has 2 divisors, whose sum is σ = 164484974. Its totient is φ = 164484972.

The previous prime is 164484967. The next prime is 164485037. The reversal of 164484973 is 379484461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136469124 + 28015849 = 11682^2 + 5293^2 .

It is an emirp because it is prime and its reverse (379484461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164484973 - 2⁹ = 164484461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164484473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82242486 + 82242487.

It is an arithmetic number, because the mean of its divisors is an integer number (82242487).

Almost surely, 2^164484973 is an apocalyptic number.

It is an amenable number.

164484973 is a deficient number, since it is larger than the sum of its proper divisors (1).

164484973 is an equidigital number, since it uses as much as digits as its factorization.

164484973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 164484973 is about 12825.1695115503. The cubic root of 164484973 is about 547.9093890446.

The spelling of 164484973 in words is "one hundred sixty-four million, four hundred eighty-four thousand, nine hundred seventy-three".