165331226 has 8 divisors (see below), whose sum is σ = 249518784. Its totient is φ = 82158300.

The previous prime is 165331219. The next prime is 165331237. The reversal of 165331226 is 622133561.

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 (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253250 + ... + 253901.

It is an arithmetic number, because the mean of its divisors is an integer number (31189848).

Almost surely, 2^165331226 is an apocalyptic number.

165331226 is a deficient number, since it is larger than the sum of its proper divisors (84187558).

165331226 is a wasteful number, since it uses less digits than its factorization.

165331226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507316.

The product of its digits is 6480, while the sum is 29.

The square root of 165331226 is about 12858.1190692885. The cubic root of 165331226 is about 548.8474221623.

Adding to 165331226 its reverse (622133561), we get a palindrome (787464787).

The spelling of 165331226 in words is "one hundred sixty-five million, three hundred thirty-one thousand, two hundred twenty-six".