165510122 has 8 divisors (see below), whose sum is σ = 248588676. Its totient is φ = 82647232.

The previous prime is 165510119. The next prime is 165510127. The reversal of 165510122 is 221015561.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 155276521 + 10233601 = 12461^2 + 3199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (165510127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51983 + ... + 55074.

Almost surely, 2^165510122 is an apocalyptic number.

165510122 is a deficient number, since it is larger than the sum of its proper divisors (83078554).

165510122 is a wasteful number, since it uses less digits than its factorization.

165510122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107832.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 165510122 is about 12865.0737269555. The cubic root of 165510122 is about 549.0453101998.

Adding to 165510122 its reverse (221015561), we get a palindrome (386525683).

The spelling of 165510122 in words is "one hundred sixty-five million, five hundred ten thousand, one hundred twenty-two".