165022434 has 40 divisors (see below), whose sum is σ = 391530348. Its totient is φ = 51770880.

The previous prime is 165022423. The next prime is 165022439. The reversal of 165022434 is 434220561.

165022434 is a `hidden beast` number, since 1 + 650 + 2 + 2 + 4 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 153140625 + 11881809 = 12375^2 + 3447^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 165022398 and 165022407.

It is not an unprimeable number, because it can be changed into a prime (165022439) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 27207 + ... + 32714.

Almost surely, 2^165022434 is an apocalyptic number.

165022434 is an abundant number, since it is smaller than the sum of its proper divisors (226507914).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

165022434 is a wasteful number, since it uses less digits than its factorization.

165022434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59952 (or 59943 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 165022434 is about 12846.1057912505. The cubic root of 165022434 is about 548.5055119249.

Adding to 165022434 its reverse (434220561), we get a palindrome (599242995).

The spelling of 165022434 in words is "one hundred sixty-five million, twenty-two thousand, four hundred thirty-four".