165774341 has 2 divisors, whose sum is σ = 165774342. Its totient is φ = 165774340.

The previous prime is 165774307. The next prime is 165774359. The reversal of 165774341 is 143477561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155725441 + 10048900 = 12479^2 + 3170^2 .

It is an emirp because it is prime and its reverse (143477561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165774341 - 2²⁶ = 98665477 is a prime.

It is a super-2 number, since 2×165774341² = 54962264267968562, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 165774295 and 165774304.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165774641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82887170 + 82887171.

It is an arithmetic number, because the mean of its divisors is an integer number (82887171).

Almost surely, 2^165774341 is an apocalyptic number.

It is an amenable number.

165774341 is a deficient number, since it is larger than the sum of its proper divisors (1).

165774341 is an equidigital number, since it uses as much as digits as its factorization.

165774341 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 38.

The square root of 165774341 is about 12875.3384809876. The cubic root of 165774341 is about 549.3373186768.

The spelling of 165774341 in words is "one hundred sixty-five million, seven hundred seventy-four thousand, three hundred forty-one".