165222334 has 4 divisors (see below), whose sum is σ = 247833504. Its totient is φ = 82611166.

The previous prime is 165222329. The next prime is 165222389. The reversal of 165222334 is 433222561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 433222561 = 29 ⋅14938709.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 41305582 + ... + 41305585.

It is an arithmetic number, because the mean of its divisors is an integer number (61958376).

Almost surely, 2^165222334 is an apocalyptic number.

165222334 is a deficient number, since it is larger than the sum of its proper divisors (82611170).

165222334 is an equidigital number, since it uses as much as digits as its factorization.

165222334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82611169.

The product of its digits is 8640, while the sum is 28.

The square root of 165222334 is about 12853.8840044556. The cubic root of 165222334 is about 548.7269000227.

Adding to 165222334 its reverse (433222561), we get a palindrome (598444895).

The spelling of 165222334 in words is "one hundred sixty-five million, two hundred twenty-two thousand, three hundred thirty-four".