165253147 has 2 divisors, whose sum is σ = 165253148. Its totient is φ = 165253146.

The previous prime is 165253117. The next prime is 165253163. The reversal of 165253147 is 741352561.

It is a strong prime.

It is an emirp because it is prime and its reverse (741352561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165253147 - 2¹⁵ = 165220379 is a prime.

It is not a weakly prime, because it can be changed into another prime (165253117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82626573 + 82626574.

It is an arithmetic number, because the mean of its divisors is an integer number (82626574).

Almost surely, 2^165253147 is an apocalyptic number.

165253147 is a deficient number, since it is larger than the sum of its proper divisors (1).

165253147 is an equidigital number, since it uses as much as digits as its factorization.

165253147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 34.

The square root of 165253147 is about 12855.0825357133. The cubic root of 165253147 is about 548.7610093560.

The spelling of 165253147 in words is "one hundred sixty-five million, two hundred fifty-three thousand, one hundred forty-seven".