165222436 has 12 divisors (see below), whose sum is σ = 298466560. Its totient is φ = 79946280.

The previous prime is 165222419. The next prime is 165222443. The reversal of 165222436 is 634222561.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 165222398 and 165222407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 666096 + ... + 666343.

Almost surely, 2^165222436 is an apocalyptic number.

It is an amenable number.

165222436 is a deficient number, since it is larger than the sum of its proper divisors (133244124).

165222436 is a wasteful number, since it uses less digits than its factorization.

165222436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1332474 (or 1332472 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 165222436 is about 12853.8879721273. The cubic root of 165222436 is about 548.7270129415.

Adding to 165222436 its reverse (634222561), we get a palindrome (799444997).

The spelling of 165222436 in words is "one hundred sixty-five million, two hundred twenty-two thousand, four hundred thirty-six".