165215327 has 2 divisors, whose sum is σ = 165215328. Its totient is φ = 165215326.

The previous prime is 165215311. The next prime is 165215341. The reversal of 165215327 is 723512561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165215327 - 2⁴ = 165215311 is a prime.

It is a super-2 number, since 2×165215327² = 54592208551433858, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 165215293 and 165215302.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165215357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82607663 + 82607664.

It is an arithmetic number, because the mean of its divisors is an integer number (82607664).

Almost surely, 2^165215327 is an apocalyptic number.

165215327 is a deficient number, since it is larger than the sum of its proper divisors (1).

165215327 is an equidigital number, since it uses as much as digits as its factorization.

165215327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600, while the sum is 32.

The square root of 165215327 is about 12853.6114380356. The cubic root of 165215327 is about 548.7191428314.

Adding to 165215327 its reverse (723512561), we get a palindrome (888727888).

The spelling of 165215327 in words is "one hundred sixty-five million, two hundred fifteen thousand, three hundred twenty-seven".