165283397 has 2 divisors, whose sum is σ = 165283398. Its totient is φ = 165283396.

The previous prime is 165283361. The next prime is 165283399. The reversal of 165283397 is 793382561.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165225316 + 58081 = 12854^2 + 241^2 .

It is an emirp because it is prime and its reverse (793382561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165283397 - 2¹⁰ = 165282373 is a prime.

Together with 165283399, 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 (165283399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82641698 + 82641699.

It is an arithmetic number, because the mean of its divisors is an integer number (82641699).

Almost surely, 2^165283397 is an apocalyptic number.

It is an amenable number.

165283397 is a deficient number, since it is larger than the sum of its proper divisors (1).

165283397 is an equidigital number, since it uses as much as digits as its factorization.

165283397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 272160, while the sum is 44.

The square root of 165283397 is about 12856.2590593065. The cubic root of 165283397 is about 548.7944913361.

The spelling of 165283397 in words is "one hundred sixty-five million, two hundred eighty-three thousand, three hundred ninety-seven".