165392042 has 8 divisors (see below), whose sum is σ = 248354532. Its totient is φ = 82607200.

The previous prime is 165392027. The next prime is 165392047. The reversal of 165392042 is 240293561.

It is a happy number.

165392042 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 161061481 + 4330561 = 12691^2 + 2081^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (165392047) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 42059 + ... + 45822.

Almost surely, 2^165392042 is an apocalyptic number.

165392042 is a deficient number, since it is larger than the sum of its proper divisors (82962490).

165392042 is an equidigital number, since it uses as much as digits as its factorization.

165392042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88824.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 165392042 is about 12860.4837389579. The cubic root of 165392042 is about 548.9147105460.

It can be divided in two parts, 16539 and 2042, that added together give a palindrome (18581).

The spelling of 165392042 in words is "one hundred sixty-five million, three hundred ninety-two thousand, forty-two".