165043242 has 96 divisors (see below), whose sum is σ = 466083072. Its totient is φ = 40960512.

The previous prime is 165043223. The next prime is 165043271. The reversal of 165043242 is 242340561.

165043242 is a `hidden beast` number, since 1 + 650 + 4 + 3 + 2 + 4 + 2 = 666.

165043242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24883 + ... + 30809.

It is an arithmetic number, because the mean of its divisors is an integer number (4855032).

Almost surely, 2^165043242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 165043242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (233041536).

165043242 is an abundant number, since it is smaller than the sum of its proper divisors (301039830).

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

165043242 is a wasteful number, since it uses less digits than its factorization.

165043242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972 (or 5969 counting only the distinct ones).

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

The square root of 165043242 is about 12846.9156609670. The cubic root of 165043242 is about 548.5285649986.

The spelling of 165043242 in words is "one hundred sixty-five million, forty-three thousand, two hundred forty-two".