165371933 has 2 divisors, whose sum is σ = 165371934. Its totient is φ = 165371932.

The previous prime is 165371893. The next prime is 165371957. The reversal of 165371933 is 339173561.

165371933 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., 162741049 + 2630884 = 12757^2 + 1622^2 .

It is a cyclic number.

It is not a de Polignac number, because 165371933 - 2⁸ = 165371677 is a prime.

It is a Chen prime.

It is equal to p_9258563 and since 165371933 and 9258563 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165371033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82685966 + 82685967.

It is an arithmetic number, because the mean of its divisors is an integer number (82685967).

Almost surely, 2^165371933 is an apocalyptic number.

It is an amenable number.

165371933 is a deficient number, since it is larger than the sum of its proper divisors (1).

165371933 is an equidigital number, since it uses as much as digits as its factorization.

165371933 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 38.

The square root of 165371933 is about 12859.7019016772. The cubic root of 165371933 is about 548.8924632578.

The spelling of 165371933 in words is "one hundred sixty-five million, three hundred seventy-one thousand, nine hundred thirty-three".