165122069 has 4 divisors (see below), whose sum is σ = 188710944. Its totient is φ = 141533196.

The previous prime is 165122011. The next prime is 165122101. The reversal of 165122069 is 960221561.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 960221561 = 13 ⋅73863197.

It is not a de Polignac number, because 165122069 - 2²⁴ = 148344853 is a prime.

It is a super-2 number, since 2×165122069² = 54530595341681522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165122869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11794427 + ... + 11794440.

It is an arithmetic number, because the mean of its divisors is an integer number (47177736).

Almost surely, 2^165122069 is an apocalyptic number.

It is an amenable number.

165122069 is a deficient number, since it is larger than the sum of its proper divisors (23588875).

165122069 is an equidigital number, since it uses as much as digits as its factorization.

165122069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23588874.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 165122069 is about 12849.9832295610. The cubic root of 165122069 is about 548.6158794476.

It can be divided in two parts, 16512 and 2069, that added together give a palindrome (18581).

The spelling of 165122069 in words is "one hundred sixty-five million, one hundred twenty-two thousand, sixty-nine".