162664273 has 2 divisors, whose sum is σ = 162664274. Its totient is φ = 162664272.

The previous prime is 162664253. The next prime is 162664319. The reversal of 162664273 is 372466261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 102880449 + 59783824 = 10143^2 + 7732^2 .

It is a cyclic number.

It is not a de Polignac number, because 162664273 - 2⁵ = 162664241 is a prime.

It is not a weakly prime, because it can be changed into another prime (162664213) 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, 81332136 + 81332137.

It is an arithmetic number, because the mean of its divisors is an integer number (81332137).

Almost surely, 2^162664273 is an apocalyptic number.

It is an amenable number.

162664273 is a deficient number, since it is larger than the sum of its proper divisors (1).

162664273 is an equidigital number, since it uses as much as digits as its factorization.

162664273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72576, while the sum is 37.

The square root of 162664273 is about 12753.9904735734. The cubic root of 162664273 is about 545.8802630719.

The spelling of 162664273 in words is "one hundred sixty-two million, six hundred sixty-four thousand, two hundred seventy-three".