165528637 has 2 divisors, whose sum is σ = 165528638. Its totient is φ = 165528636.

The previous prime is 165528611. The next prime is 165528667. The reversal of 165528637 is 736825561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93431556 + 72097081 = 9666^2 + 8491^2 .

It is an emirp because it is prime and its reverse (736825561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165528637 - 2¹¹ = 165526589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 165528593 and 165528602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165528667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82764318 + 82764319.

It is an arithmetic number, because the mean of its divisors is an integer number (82764319).

Almost surely, 2^165528637 is an apocalyptic number.

It is an amenable number.

165528637 is a deficient number, since it is larger than the sum of its proper divisors (1).

165528637 is an equidigital number, since it uses as much as digits as its factorization.

165528637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The square root of 165528637 is about 12865.7932907380. The cubic root of 165528637 is about 549.0657826534.

The spelling of 165528637 in words is "one hundred sixty-five million, five hundred twenty-eight thousand, six hundred thirty-seven".