164612473 has 2 divisors, whose sum is σ = 164612474. Its totient is φ = 164612472.

The previous prime is 164612467. The next prime is 164612491. The reversal of 164612473 is 374216461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 162741049 + 1871424 = 12757^2 + 1368^2 .

It is a cyclic number.

It is not a de Polignac number, because 164612473 - 2⁹ = 164611961 is a prime.

It is not a weakly prime, because it can be changed into another prime (164612423) 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, 82306236 + 82306237.

It is an arithmetic number, because the mean of its divisors is an integer number (82306237).

Almost surely, 2^164612473 is an apocalyptic number.

It is an amenable number.

164612473 is a deficient number, since it is larger than the sum of its proper divisors (1).

164612473 is an equidigital number, since it uses as much as digits as its factorization.

164612473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 164612473 is about 12830.1392432039. The cubic root of 164612473 is about 548.0509225505.

The spelling of 164612473 in words is "one hundred sixty-four million, six hundred twelve thousand, four hundred seventy-three".