165343393 has 2 divisors, whose sum is σ = 165343394. Its totient is φ = 165343392.

The previous prime is 165343369. The next prime is 165343403. The reversal of 165343393 is 393343561.

165343393 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156950784 + 8392609 = 12528^2 + 2897^2 .

It is a cyclic number.

It is not a de Polignac number, because 165343393 - 2⁵ = 165343361 is a prime.

It is not a weakly prime, because it can be changed into another prime (165340393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82671696 + 82671697.

It is an arithmetic number, because the mean of its divisors is an integer number (82671697).

Almost surely, 2^165343393 is an apocalyptic number.

It is an amenable number.

165343393 is a deficient number, since it is larger than the sum of its proper divisors (1).

165343393 is an equidigital number, since it uses as much as digits as its factorization.

165343393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 87480, while the sum is 37.

The square root of 165343393 is about 12858.5921857721. The cubic root of 165343393 is about 548.8608853637.

The spelling of 165343393 in words is "one hundred sixty-five million, three hundred forty-three thousand, three hundred ninety-three".