165412242 has 24 divisors (see below), whose sum is σ = 358762716. Its totient is φ = 55080576.

The previous prime is 165412211. The next prime is 165412243. The reversal of 165412242 is 242214561.

165412242 is a `hidden beast` number, since 1 + 6 + 5 + 412 + 242 = 666.

165412242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 150038001 + 15374241 = 12249^2 + 3921^2 .

It is a super-2 number, since 2×165412242² = 54722419606933128, which contains 22 as substring.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (165412243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15558 + ... + 23934.

Almost surely, 2^165412242 is an apocalyptic number.

165412242 is an abundant number, since it is smaller than the sum of its proper divisors (193350474).

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

165412242 is a wasteful number, since it uses less digits than its factorization.

165412242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9482 (or 9479 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 165412242 is about 12861.2690664646. The cubic root of 165412242 is about 548.9370566953.

The spelling of 165412242 in words is "one hundred sixty-five million, four hundred twelve thousand, two hundred forty-two".