165632573 has 2 divisors, whose sum is σ = 165632574. Its totient is φ = 165632572.

The previous prime is 165632527. The next prime is 165632611. The reversal of 165632573 is 375236561.

It is an a-pointer prime, because the next prime (165632611) can be obtained adding 165632573 to its sum of digits (38).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165199609 + 432964 = 12853^2 + 658^2 .

It is a cyclic number.

It is not a de Polignac number, because 165632573 - 2¹⁴ = 165616189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165632503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82816286 + 82816287.

It is an arithmetic number, because the mean of its divisors is an integer number (82816287).

Almost surely, 2^165632573 is an apocalyptic number.

It is an amenable number.

165632573 is a deficient number, since it is larger than the sum of its proper divisors (1).

165632573 is an equidigital number, since it uses as much as digits as its factorization.

165632573 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 38.

The square root of 165632573 is about 12869.8318947840. The cubic root of 165632573 is about 549.1806787061.

The spelling of 165632573 in words is "one hundred sixty-five million, six hundred thirty-two thousand, five hundred seventy-three".