165236069 has 2 divisors, whose sum is σ = 165236070. Its totient is φ = 165236068.

The previous prime is 165236051. The next prime is 165236131. The reversal of 165236069 is 960632561.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 165122500 + 113569 = 12850^2 + 337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165236069 is a prime.

It is a super-2 number, since 2×165236069² = 54605916997145522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165236009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82618034 + 82618035.

It is an arithmetic number, because the mean of its divisors is an integer number (82618035).

Almost surely, 2^165236069 is an apocalyptic number.

It is an amenable number.

165236069 is a deficient number, since it is larger than the sum of its proper divisors (1).

165236069 is an equidigital number, since it uses as much as digits as its factorization.

165236069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 38.

The square root of 165236069 is about 12854.4182676619. The cubic root of 165236069 is about 548.7421048983.

The spelling of 165236069 in words is "one hundred sixty-five million, two hundred thirty-six thousand, sixty-nine".