165122473 has 2 divisors, whose sum is σ = 165122474. Its totient is φ = 165122472.

The previous prime is 165122467. The next prime is 165122509. The reversal of 165122473 is 374221561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 147549609 + 17572864 = 12147^2 + 4192^2 .

It is a cyclic number.

It is not a de Polignac number, because 165122473 - 2⁹ = 165121961 is a prime.

It is not a weakly prime, because it can be changed into another prime (165122413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82561236 + 82561237.

It is an arithmetic number, because the mean of its divisors is an integer number (82561237).

Almost surely, 2^165122473 is an apocalyptic number.

It is an amenable number.

165122473 is a deficient number, since it is larger than the sum of its proper divisors (1).

165122473 is an equidigital number, since it uses as much as digits as its factorization.

165122473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10080, while the sum is 31.

The square root of 165122473 is about 12849.9989494163. The cubic root of 165122473 is about 548.6163268754.

The spelling of 165122473 in words is "one hundred sixty-five million, one hundred twenty-two thousand, four hundred seventy-three".