165523226 has 32 divisors (see below), whose sum is σ = 283713408. Its totient is φ = 71691840.

The previous prime is 165523199. The next prime is 165523243. The reversal of 165523226 is 622325561.

It is a junction number, because it is equal to n+sod(n) for n = 165523192 and 165523201.

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 15 ways as a sum of consecutive naturals, for example, 188300 + ... + 189176.

It is an arithmetic number, because the mean of its divisors is an integer number (8866044).

Almost surely, 2^165523226 is an apocalyptic number.

165523226 is a deficient number, since it is larger than the sum of its proper divisors (118190182).

165523226 is a wasteful number, since it uses less digits than its factorization.

165523226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286.

The product of its digits is 21600, while the sum is 32.

The square root of 165523226 is about 12865.5830027248. The cubic root of 165523226 is about 549.0597997464.

Adding to 165523226 its reverse (622325561), we get a palindrome (787848787).

The spelling of 165523226 in words is "one hundred sixty-five million, five hundred twenty-three thousand, two hundred twenty-six".