165084149 has 2 divisors, whose sum is σ = 165084150. Its totient is φ = 165084148.

The previous prime is 165084137. The next prime is 165084151. The reversal of 165084149 is 941480561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 143832049 + 21252100 = 11993^2 + 4610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165084149 is a prime.

It is a Sophie Germain prime.

Together with 165084151, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165084109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82542074 + 82542075.

It is an arithmetic number, because the mean of its divisors is an integer number (82542075).

Almost surely, 2^165084149 is an apocalyptic number.

It is an amenable number.

165084149 is a deficient number, since it is larger than the sum of its proper divisors (1).

165084149 is an equidigital number, since it uses as much as digits as its factorization.

165084149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 165084149 is about 12848.5076565335. The cubic root of 165084149 is about 548.5738800004.

The spelling of 165084149 in words is "one hundred sixty-five million, eighty-four thousand, one hundred forty-nine".