165282241 has 2 divisors, whose sum is σ = 165282242. Its totient is φ = 165282240.

The previous prime is 165282181. The next prime is 165282251. The reversal of 165282241 is 142282561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 99201600 + 66080641 = 9960^2 + 8129^2 .

It is a cyclic number.

It is not a de Polignac number, because 165282241 - 2⁷ = 165282113 is a prime.

It is not a weakly prime, because it can be changed into another prime (165282251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82641120 + 82641121.

It is an arithmetic number, because the mean of its divisors is an integer number (82641121).

Almost surely, 2^165282241 is an apocalyptic number.

It is an amenable number.

165282241 is a deficient number, since it is larger than the sum of its proper divisors (1).

165282241 is an equidigital number, since it uses as much as digits as its factorization.

165282241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 31.

The square root of 165282241 is about 12856.2141005819. The cubic root of 165282241 is about 548.7932119015.

It can be divided in two parts, 16528 and 2241, that added together give a square (18769 = 137²).

The spelling of 165282241 in words is "one hundred sixty-five million, two hundred eighty-two thousand, two hundred forty-one".