165115226 has 8 divisors (see below), whose sum is σ = 247816800. Its totient is φ = 82509628.

The previous prime is 165115219. The next prime is 165115267. The reversal of 165115226 is 622511561.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19526 + ... + 26673.

It is an arithmetic number, because the mean of its divisors is an integer number (30977100).

Almost surely, 2^165115226 is an apocalyptic number.

165115226 is a deficient number, since it is larger than the sum of its proper divisors (82701574).

165115226 is a wasteful number, since it uses less digits than its factorization.

165115226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47988.

The product of its digits is 3600, while the sum is 29.

The square root of 165115226 is about 12849.7169618634. The cubic root of 165115226 is about 548.6083007507.

Adding to 165115226 its reverse (622511561), we get a palindrome (787626787).

The spelling of 165115226 in words is "one hundred sixty-five million, one hundred fifteen thousand, two hundred twenty-six".