165801341 has 2 divisors, whose sum is σ = 165801342. Its totient is φ = 165801340.

The previous prime is 165801287. The next prime is 165801343. The reversal of 165801341 is 143108561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 163968025 + 1833316 = 12805^2 + 1354^2 .

It is a cyclic number.

It is not a de Polignac number, because 165801341 - 2¹⁸ = 165539197 is a prime.

Together with 165801343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165801343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82900670 + 82900671.

It is an arithmetic number, because the mean of its divisors is an integer number (82900671).

Almost surely, 2^165801341 is an apocalyptic number.

It is an amenable number.

165801341 is a deficient number, since it is larger than the sum of its proper divisors (1).

165801341 is an equidigital number, since it uses as much as digits as its factorization.

165801341 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 165801341 is about 12876.3869544216. The cubic root of 165801341 is about 549.3671409488.

The spelling of 165801341 in words is "one hundred sixty-five million, eight hundred one thousand, three hundred forty-one".