165947527 has 2 divisors, whose sum is σ = 165947528. Its totient is φ = 165947526.

The previous prime is 165947443. The next prime is 165947533. The reversal of 165947527 is 725749561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165947527 - 2¹⁹ = 165423239 is a prime.

It is equal to p_9288856 and since 165947527 and 9288856 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165947597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82973763 + 82973764.

It is an arithmetic number, because the mean of its divisors is an integer number (82973764).

Almost surely, 2^165947527 is an apocalyptic number.

165947527 is a deficient number, since it is larger than the sum of its proper divisors (1).

165947527 is an equidigital number, since it uses as much as digits as its factorization.

165947527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 529200, while the sum is 46.

The square root of 165947527 is about 12882.0622184493. The cubic root of 165947527 is about 549.5285513714.

The spelling of 165947527 in words is "one hundred sixty-five million, nine hundred forty-seven thousand, five hundred twenty-seven".